CA2784007A1 - Pyrrolidine derivatives - Google Patents

Pyrrolidine derivatives Download PDF

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CA2784007A1
CA2784007A1 CA2784007A CA2784007A CA2784007A1 CA 2784007 A1 CA2784007 A1 CA 2784007A1 CA 2784007 A CA2784007 A CA 2784007A CA 2784007 A CA2784007 A CA 2784007A CA 2784007 A1 CA2784007 A1 CA 2784007A1
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methyl
phenyl
pyrrolidin
carbonyl
carbamic acid
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CA2784007C (en
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Henner Knust
Andreas Koblet
Matthias Nettekoven
Hasane Ratni
Claus Riemer
Walter Vifian
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F Hoffmann La Roche AG
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    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/40—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil
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    • A61K31/4025—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil not condensed and containing further heterocyclic rings, e.g. cromakalim
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    • A61K31/44—Non condensed pyridines; Hydrogenated derivatives thereof
    • A61K31/4427—Non condensed pyridines; Hydrogenated derivatives thereof containing further heterocyclic ring systems
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    • A61K31/44—Non condensed pyridines; Hydrogenated derivatives thereof
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    • A61K31/4965—Non-condensed pyrazines
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    • A61K31/50—Pyridazines; Hydrogenated pyridazines
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    • A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
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    • A61K31/535—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with at least one nitrogen and one oxygen as the ring hetero atoms, e.g. 1,2-oxazines
    • A61K31/5375—1,4-Oxazines, e.g. morpholine
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    • C07D207/04—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members
    • C07D207/10—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
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    • C07D401/06—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
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Abstract

The present invention relates to compounds of formula (I) or to a pharmaceutically active salt thereof. It has been found that the present compounds are high potential NK-3 receptor antagonists for the treatment of depression, pain, psychosis, Parkinson's disease, schizophrenia, anxiety and attention deficit hyperactivity disorder (ADHD).

Description

Pyrrolidine derivatives The present invention relates to compounds of formula z R4
2 (R1) R \ N 0 N

wherein R' is hydrogen, halogen, cyano, lower alkyl or lower alkyl substituted by halogen;
n is 1, 2 or 3, if n is 2 or 3, R' can be different;

R2 is hydrogen or methyl;

R3 is (CH2)r C(O)NH2 or (CH2)rCN, wherein r is 1 or 2, or is a non aromatic heterocyclic group /( )7CR6 ()o wherein X is N or CH;

Y is -C(R)(R7)-; -N(R7')-, -S(O)2 or 0;
R6 is hydrogen, di-lower alkyl or =0;

o and m may be independently from each other 0, 1 or 2;
p is 0, l or 2;

R is hydrogen, halogen, or lower alkyl;
Pop/ 11.10.2010 R7 is hydrogen, halogen, hydroxy, lower alkyl substituted by hydroxy, cyano, or lower alkoxy;

R7' is hydrogen, -C(O)-lower alkyl, -C(0)0-lower alkyl, -C(O)CH2O-lower alkyl, -C(O)CH2CN, or is -C(O)-cycloalkyl, cycloalkyl or -CH2-cycloalkyl, wherein the cycloalkyl groups are optionally substituted by halogen, lower alkoxy, lower alkyl substituted by halogen, cyan, -CH2O-lower alkyl, or lower alkyl, or is -C(O)-heterocycloalkyl or heterocycloalkyl, or is -C(O)-heteroaryl or heteroaryl, which heterocycloalkyl or heteroaryl groups are optionally substituted by halogen, lower alkyl, =0, lower alkoxy, lower alkyl substituted by halogen, C(O)NH-lower alkyl, C(O)NI-12, C(O)-lower alkyl, S(0)2- lower alkyl or cyan;

Z is -0-, -NH- or -N(lower alkyl)-;

R4 is lower alkyl, lower alkyl substituted by halogen, lower alkyl substituted by hydroxy, lower alkyl substituted by cycloalkyl, (CH2)2,3-0-lower alkyl, CH(CH3)CH2-0-lower alkyl, (CH2)qCN, bicyclo [2.2. 1 ]heptanyl, (CH2)q cycloalkyl optionally substituted by lower alkyl, lower alkyl substituted by halogen, lower alkoxy or by halogen, or is (CH2)gheterocycloalkyl or is (CH2)garyl, CH(lower alkyl)-aryl, CH(cycloalkyl)-aryl, or is (CH2)gheteroaryl, which heterocycloalkyl, aryl or heteroaryl rings are optionally substituted by halogen, hydroxy, lower alkyl, lower alkyl substituted by halogen, S(0)2-lower alkyl, cyan or by lower alkoxy;
q is 0, l or 2;

or to a pharmaceutically active salt thereof.
The invention includes all stereoisomeric forms, including individual diastereoisomers and enantiomers of the compound of formula (I) as well as racemic and non-racemic mixtures thereof.
It has been found that the present compounds are high potential NK-3 receptor antagonists for the treatment of depression, pain, psychosis, Parkinson's disease, schizophrenia, anxiety and attention deficit hyperactivity disorder (ADHD).
The three main mammalian tachykinins, substance P (SP), neurokinin A (NKA) and neurokinin B (NKB) belong to the family of neuropeptides sharing the common COOH-terminal pentapeptide sequence of Phe-X-Gly-Leu-Met-NH2. As neurotransmitters, these peptides exert their biological activity via three distinct neurokinin (NK) receptors termed as NK- 1, NK-2 and
-3-NK-3. SP binds preferentially to the NK-1 receptor, NKA to the NK-2 and NKB to the NK-3 receptor.
The NK-3 receptor is characterized by a predominant expression in CNS and its involvement in the modulation of the central monoaminergic system has been shown. These properties make the NK-3 receptor a potential target for central nervous system disorders such as anxiety, depression, bipolar disorders, Parkinson's disease, schizophrenia and pain (Neurosci.
Letters, 2000, 283, 185 -188; Exp. Opin. Ther. Patents 2000, 10, 939-960;
Neuroscience, 1996, 74, 403-414; Neuropeptides, 1998, 32, 481-488).
Schizophrenia is one of the major neuropsychiatric disorders, characterized by severe and chronic mental impairment. This devastating disease affects about 1 % of the world's population.
Symptoms begin in early adulthood and are followed by a period of interpersonal and social dysfunction. Schizophrenia manifests as auditory and visual hallucinations, paranoia, delusions (positive symptoms), blunted affect, depression, anhedonia, poverty of speech, memory and attention deficits as well as social withdrawal (negative symptoms).
For decades scientists and clinicians have made efforts with the aim of discovering an ideal agent for the pharmacological treatment of schizophrenia. However, the complexity of the disorders, due to a wide array of symptoms, has hampered those efforts. There are no specific focal characteristics for the diagnosis of schizophrenia and no single symptom is consistently present in all patients. Consequently, the diagnosis of schizophrenia as a single disorder or as a variety of different disorders has been discussed but not yet resolved. The major difficulty in the development of a new drug for schizophrenia is the lack of knowledge about the cause and nature of this disease. Some neurochemical hypotheses have been proposed on the basis of pharmacological studies to rationalize the development of a corresponding therapy: the dopamine, the serotonin and the glutamate hypotheses. But taking into account the complexity of schizophrenia, an appropriate multireceptor affinity profile might be required for efficacy against positive and negative signs and symptoms. Furthermore, an ideal drug against schizophrenia would preferably have a low dosage allowing once-per-day dosage, due to the low adherence of schizophrenic patients.
In recent years clinical studies with selective NKl and NK2 receptor antagonists appeared in the literature showing results for the treatment of emesis, depression, anxiety, pain and migraine (NK1) and asthma (NK2 and NK1). The most exciting data were produced in the treatment of chemotherapy-induced emesis, nausea and depression with NKl and in asthma with NK2- receptor antagonists. In contrast, no clinical data on NK3 receptor antagonists have
-4-appeared in the literature until 2000. Osanetant (SR 142,801) from Sanofi-Synthelabo was the first identified potent and selective non-peptide antagonist described for the NK3 tachykinin receptor for the potential treatment of schizophrenia, which was reported in the literature (Current Opinion in Investigational Drugs, 2001,2(7), 950-956 and Psychiatric Disorders Study 4, Schizophrenia, June 2003, Decision Recources, Inc., Waltham, Massachusetts). The proposed drug SR 142,801 has been shown in a phase II trial as active on positive symptoms of schizophrenia, such as altered behaviour, delusion, hallucinations, extreme emotions, excited motor activity and incoherent speech, but inactive in the treatment of negative symptoms, which are depression, anhedonia, social isolation or memory and attention deficits.
The neurokinin-3 receptor antagonists have been described as useful in pain or inflammation, as well as in schizophrenia, Exp. Opinion. Ther. Patents (2000), 10(6), 939-960 and Current Opinion in Investigational Drugs, 2001, 2(7), 950-956 956 and Psychiatric Disorders Study 4, Schizophrenia, June 2003, Decision Recources, Inc., Waltham, Massachusetts).
Objects of the present invention are novel compounds of formula I, their manufacture, medicaments based on a compound in accordance with the invention and their production as well as the use of compounds of formula I in the control or prevention of illnesses such as depression, pain, bipolar disorders, psychosis, Parkinson's disease, schizophrenia, anxiety and attention deficit hyperactivity disorder (ADHD).
The preferred indications using the compounds of the present invention are depression, psychosis, Parkinson's disease, schizophrenia, anxiety and attention deficit hyperactivity disorder (ADHD).
The following definitions of the general terms used in the present description apply irrespective of whether the terms in question appear alone or in combination.
As used herein, the term "lower alkyl" denotes a straight- or branched-chain alkyl group containing from 1-8 carbon atoms, for example, methyl, ethyl, propyl, isopropyl, n-butyl, i-butyl, t-butyl and the like. Preferred lower alkyl groups are groups with 1-4 carbon atoms.
As used herein, the term "lower alkoxy" denotes a straight- or branched-chain alkyl group as defined above which is connected with an oxygen atom.
The term "lower alkyl substituted by halogen" denotes an alkyl group as defined above, wherein at least one hydrogen atom is replaced by halogen, for example -CF3, -CHF2, -CH2F, -CH2CF3, -C(CH3)2CF3, -CH(CH3)CH2CF3, -CH(CH3)CF3, -CH2CH2CF3, -CH2CH2CH2CF3, -
-5-CH2CH2CF2CF3, -CH2CH2CH2CF2CF3, -CH2CF2CF3 and the like. Preferred lower alkyl substituted by halogen groups are groups having 1-5 carbon atoms.
The term "lower alkyl substituted by hydroxy" denotes an alkyl group as defined above, wherein at least one hydrogen atom is replaced by hydroxy.
The term "halogen" denotes chlorine, iodine, fluorine and bromine.
The term "cycloalkyl" denotes a saturated carbon ring containing from 3-7 carbon atoms, for example, cyclopropyl, cyclobutyl, cyclpentyl, cyclohexyl, cycloheptyl, and the like.
The term "aryl" denotes a cyclic aromatic hydrocarbon radical consisting of one or more fused rings containing 6-14 carbon atoms in which at least one ring is aromatic in nature, for example phenyl, naphthyl, 1,2,3,4-tetrahydronaphthalenyl or indanyl. Preferred is the phenyl group.
The term "heteroaryl" denotes a cyclic aromatic hydrocarbon radical consisting of one or more fused rings containing 5-14 ring atoms, preferably containing 5-10 ring atoms, in which at least one ring is aromatic in nature, and which contains at least one heteroatom, selected from N, 0 or S, for example quinoxalinyl, dihydroisoquinolinyl, pyrazinyl, pyrazolyl, 2,4-dihydro-pyrazol-3-one, pyridinyl, isoxazolyl, benzo[1,3]dioxol, [1.3.4]thiadiazol, pyridazinyl, pyrimidinyl, benzotriazol-5-yl, benzoimidazol-5-yl, [1,3,4]-oxadiazol-2-yl, [1,2.4]triazol-1-yl, [1,6]naphthyridin-2-yl, imidazo[4,5-b]pyridine-6-yl, tetrazolyl, thiazolyl, thiadiazolyl, thienyl, furyl, imidazol-1-yl, or benzofuranyl. Preferred heteroaryl group is pyridine-2,3or 4-yl.
The term "heterocycloalkyl" denotes an alkyl ring, wherein one or two carbon atoms are replaced by N, S or 0, for example the following groups: tetrahydropyranyl, 1,1-dioxo-hexahydro-1X6-thiopyranyl, 1,1-dioxo-tetrahydro-1X6-thiophenyl, oxetanyl, morpholinyl, [1,4]diazepam-1-yl, piperazinyl, pyrrolidinyl, piperidinyl, tetrahydrofuranyl, tetrahydrothiophenyl, piperidin-4-yl or 1,1-dioxo-X6-thiomorpholinyl.
The term "pharmaceutically acceptable acid addition salts" embraces salts with inorganic and organic acids, such as hydrochloric acid, nitric acid, sulfuric acid, phosphoric acid, citric acid, formic acid, fumaric acid, maleic acid, acetic acid, succinic acid, tartaric acid, methanesulfonic acid, p-toluenesulfonic acid and the like.
The following structures are encompassed by formula I of the present invention:
Compounds of formula la:
6 PCT/EP2010/069434 (R1)n N-IjI- O
NN( N-R' o (>O 6 R la wherein R' is hydrogen, halogen, cyano, lower alkyl or lower alkyl substituted by halogen;
n is 1, 2 or 3, if n is 2 or 3, R' can be different;

R2 is hydrogen or methyl;

R6 is hydrogen, di-lower alkyl or =0;

o and m may be independently from each other 0, 1 or 2;

R7' is hydrogen, -C(O)-lower alkyl, -C(0)0-lower alkyl, -C(O)CH2O-lower alkyl, -C(O)CH2CN, or is -C(O)-cycloalkyl, cycloalkyl or -CH2-cycloalkyl, wherein the cycloalkyl groups are optionally substituted by halogen, lower alkoxy, lower alkyl substituted by halogen, cyan, -CH2O-lower alkyl, or lower alkyl, or is -C(O)-heterocycloalkyl or heterocycloalkyl, or is -C(O)-heteroaryl or heteroaryl, which heterocycloalkyl or heteroaryl groups are optionally substituted by halogen, lower alkyl, =0, lower alkoxy, lower alkyl substituted by halogen, C(O)NH-lower alkyl, C(O)NH2, C(O)-lower alkyl, S(0)2- lower alkyl or cyan;

Z is -0-, -NH- or -N(lower alkyl)-;

R4 is lower alkyl, lower alkyl substituted by halogen, lower alkyl substituted by hydroxy, lower alkyl substituted by cycloalkyl, (CH2)2,3-0-lower alkyl, CH(CH3)CH2-0-lower alkyl, (CH2)qCN, bicyclo [2.2. 1 ]heptanyl, (CH2)q cycloalkyl optionally substituted by lower alkyl, lower alkyl substituted by halogen, lower alkoxy or by halogen, or is (CH2)gheterocycloalkyl or is (CH2)garyl, CH(lower alkyl)-aryl, CH(cycloalkyl)-aryl, or is (CH2)gheteroaryl, which heterocycloalkyl, aryl or heteroaryl rings are optionally substituted by halogen, hydroxy, lower alkyl, lower alkyl substituted by halogen, S(0)2-lower alkyl, cyan or by lower alkoxy;
q is 0, 1 or 2;
-7-or a pharmaceutically active salt thereof.

Compounds of formula la are the followings:

rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid cyclopentyl ester rac-[(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester rac-[(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid phenyl ester rac-[(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid p-tolyl ester rac-[(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methoxy-phenyl ester rac-[(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-chloro-phenyl ester rac-[(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid butyl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-chloro-phenyl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid phenyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid p-tolyl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid p-methoxyphenyl ester {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid p-tolyl ester {(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid p-tolyl ester {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-
-8-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-chlorophenyl ester {(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-chlorophenyl ester [(3R,4S)-1 -(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methoxy-phenyl ester [(3 S,4R)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methoxy-phenyl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,2-dimethyl-propyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid prop-2-ynyl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid cyclopropylmethyl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-arbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester rac- {(3R,4S)-4-(4-Chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester rac- {(3R,4S)-4-(4-Chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid butyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-chloro-pyridin-3-yl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3,3-trifluoro-propyl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3-dimethyl-butyl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tetrahydro-pyran-4-ylmethyl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid cyclopentylmethyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3-methyl-oxetan-3-ylmethyl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-trifluoromethyl-pyridin-3-yl ester {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-arbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester {(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-arbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester {(3R,4S)-4-(4-Chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-
-9-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3 S,4R)-4-(4-Chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester rac- {(3R,4R)-4-(3,4-Dichloro-phenyl)-1-El -(1 -methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-chloro-pyridin-3-yl ester {(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-chloro-pyridin-3-yl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1 -(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-carbamic acid 4-fluoro-phenyl ester rac- {(3R,4S)-4-(4-Chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester rac- {(3R,4S)-4-(4-Chloro-phenyl)-1-[1 -(1 -methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-methyl-cyclohexyl ester rac-1- {(3R,4S)-4-(4-Chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -3 -(2-cyclopropyl- ethyl) -I -methyl-urea {(3R,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4S)-4-(3,4-Dichloro-phenyl)-1-[1 -(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester rac- {(3R,4S)-4-(4-Chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester rac- {(3R,4S)-4-(4-Chloro-phenyl)-1-[1 -(1 -methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester rac-[(3R,4S)-1 -(1-Acetyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester rac-4- {(3 S,4R)-3-(3,4-Dichloro-phenyl)-4-[(4-fluoro-phenoxycarbonyl)-methyl-amino]-pyrrolidine-l-carbonyl}-piperidine-l-carboxylic acid tert-butyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1 -(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (1R,2S,4S)-bicyclo[2.2.1]hept-2-yl ester and {(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (1R,2S,4S)-bicyclo[2.2.1]hept-2-yl ester {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (1R,2R,4S)-bicyclo[2.2.1]hept-2-yl ester and {(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-
-10-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (1R,2R,4S)-bicyclo[2.2.1]hept-2-yl ester rac- {(3R,4S)-4-(3-Chloro-4-methyl-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester rac- {(3R,4S)-4-(4-Chloro-3-methyl-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(1-propionyl-piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester rac-[(3R,4S)-1-(1-Cyclopropanecarbonyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(2-methoxy-acetyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(tetrahydro-pyran-4-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(tetrahydro-pyran-4-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(1-[ 1,3,4]thiadiazol-2-yl-piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester rac-[(3R,4S)-1-[1-(6-Chloro-pyridazin-3-yl)-piperidine-4-carbonyl]-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester rac-[(3R,4S)-1-(5'-Cyano-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrro lidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester {(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3,4,4,4-pentafluoro-butyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (S)-1-(tetrahydro-furan-2-yl)methyl ester and rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (R)-1-(tetrahydro-furan-2-yl)methyl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (S)-1-(tetrahydro-furan-3-yl)methyl ester and rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (R)-1-(tetrahydro-furan-3-yl)methyl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-
-11-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3,3-trifluoro-propyl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3,3-trifluoro-propyl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-El -(1 -methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,5,5,5-pentafluoro-pentyl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 1-methyl-cyclopropylmethyl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-methyl-cyclopropylmethyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-benzyl ester rac- l - {(3R,4S)-4-(4-Chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-3-(4-fluoro-phenyl)-l-methyl-urea rac- 1-(2-Cyclopropyl-ethyl)-3-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-1,3-dimethyl-urea rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3-hydroxy-3-methyl-butyl ester rac {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4-difluoro-cyclohexylmethyl ester {(3R,4S)-4-(4-Chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester {(3 S,4R)-4-(4-Chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4-difluoro-cyclohexyl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester {(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 1-methyl-cyclopropylmethyl ester {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 1-methyl-cyclopropylmethyl ester {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester {(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester {(3 S,4R)-4-(4-Chloro-phenyl)-1-[ 1-(1,1-dioxo-hexahydro-1 )6-thiopyran-4-yl)-piperidine-4-
-12-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3 S,4R)-4-(4-Chloro-phenyl)-1-[ 1-(6-chloro-pyridazin-3-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-El -(1 -methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3-difluoro-cyclopentylmethyl ester {(3 S,4R)-4-(4-Chloro-phenyl)-1-[ 1-(tetrahydro-pyran-4-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3-bromo-4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1,1-dioxo-tetrahydro-1)6-thiophen-3-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3 S,4R)-4-(4-Chloro-phenyl)-1-[ 1-(6-methyl-pyridazin-3-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester rac-[(3 S,4R)-1-(5'-tert-Butylcarbamoyl-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester rac-[(3 S,4R)-1-(5'-tert-Butylcarbamoyl-3,4,5,6-tetrahydro-2H-[
l,2']bipyridinyl-4-carbonyl)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester [(3R,4S)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(tetrahydro-pyran-4-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester rac-[(3 S,4R)-1-(5'-tert-Butylcarbamoyl-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4,4,4-trifluoro-butyl ester [(3R,4S)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4,4,4-trifluoro-butyl ester [(3R,4S)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4,4,4-trifluoro-butyl ester {(3 S,4R)-4-(4-Fluoro-phenyl)-1-El -(1 -methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3R,4S)-4-(4-Fluoro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-1-(5'-Cyano-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-4-(4-fluoro-phenyl)-
-13-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3R,4S)-1-(5'-Cyano-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester 4- {(3R,4S)-3-(4-Chloro-phenyl)-4-[(4-fluoro-phenoxycarbonyl)-methyl-amino]-pyrrolidine- l -carbonyl }-piperidine-l-carboxylic acid tert-butyl ester {(3 S,4R)-4-(4-Chloro-phenyl)-1-[ 1 -(5 -methyl- [ 1,3,4]oxadiazol-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid ethyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid isopropyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid propyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid isobutyl ester {(3 S,4R)-4-(4-Chloro-phenyl)-1-[ 1-(6-cyan-pyridazin-3-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid isobutyl ester {(3 S,4R)-4-(4-Chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid propyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid cyclohexyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3,3,3-trifluoro-propyl ester [(3R,4S)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3,3,3-trifluoro-propyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclopropyl-piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester 3- {(3R,4S)-3-(4-Chloro-phenyl)-4-[(4-fluoro-phenoxycarbonyl)-methyl-amino]-pyrrolidine- l -carbonyl }-pyrrolidine-l-carboxylic acid tert-butyl ester {(3 S,4R)-4-(4-Chloro-phenyl)-1-[1 -(1 -methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid cyclohexyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1-cyclopropyl-ethyl ester {(3 S,4R)-4-(4-Chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-
-14-pyrrolidin-3-yl}-methyl-carbamic acid 1-cyclopropyl-ethyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid oxetan-3-yl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid tetrahydro-pyran-4-yl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid sec-butyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,2,2-trifluoro-ethyl ester [(3S,4R)-1-(5'-Cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrro lidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester {(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(6-methyl-pyridazin-3-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester {(3 S,4R)-4-(4-Chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tetrahydro-pyran-4-yl ester {(3 S,4R)-4-(4-Chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid sec-butyl ester {(3 S,4R)-4-(4-Chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,2,2-trifluoro ethyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,2,2-trifluoro-l-methyl-ethyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,2,2-trifluoro-l-methyl-ethyl ester {(3 S,4R)-4-(4-Chloro-phenyl)-1-[ 1-(4-methyl-pyrimidin-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(pyrrolidine-3-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3 S,4R)-4-(4-Chloro-phenyl)-1-[ 1-(5-fluoro-pyrimidin-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-propionyl-pyrrolidine-3-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclopropanecarbonyl-pyrrolidine-3-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3 S,4R)-4-(4-Chloro-phenyl)-1-[ 1-(2-methoxy-acetyl)-pyrrolidine-3-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid cyclobutyl ester {(3 S,4R)-4-(4-Chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-
-15-pyrrolidin-3-yl}-methyl-carbamic acid cyclobutyl ester {(3 S,4R)-4-(4-Chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,2,3,3-tetrafluorocyclobutyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,2,3,3-tetrafluorocyclobutyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3,3,3-trifluoro-l-methyl-propyl ester {(3 S,4R)-4-(4-Chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3,3-trifluoro-l-methyl-propyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(tetrahydro-pyran-4-yl)-pyrrolidine-3-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-methanesulfonyl-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-trifluoromethyl-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-1-(5'-Acetyl-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(1-pyrimidin-2-yl-piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(5-chloro-pyrimidin-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(4'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(3'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3 S,4R)-4-(4-Chloro-phenyl)-1-[ 1-(6-cyan-pyrazin-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(3'-chloro-5'-trifluoromethyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(6'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3 S,4R)-4-(4-Chloro-phenyl)-1-[ 1-(5-methoxy-pyrimidin-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(1-pyrimidin-4-yl-piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3 S,4R)-4-(4-Chloro-phenyl)-1-[ 1-(5-cyan-pyrimidin-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3 S,4R)-4-(4-Chloro-phenyl)-1-[ 1-(5-cyan-pyrazin-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-
-16-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-methyl-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-fluoro-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-1-(5'-Carbamoyl-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-4-(4-chloro-phenyl)-pyrro lidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3 S,4R)-4-(4-Chloro-phenyl)-1-[ 1-(6-methoxy-pyridazin-3-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(6'-cyano-3,4,5,6-tetrahydro-2H-[
1,3']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-chloro-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methoxy-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid p-tolyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-chloro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid cyclopentyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,2-dimethyl-propyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-methoxy-ethyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,4-difluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3,4-difluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(6'-cyano-3,4,5,6-tetrahydro-2H-[
1,3']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3,5-difluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,3-difluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-
-17-pyrrolidin-3-yl]-methyl-carbamic acid 2-fluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-chloro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3-fluoro-propyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid cyclopropylmethyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3-methoxy-propyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1-methyl-cyclopropylmethyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3-methyl-oxetan-3-ylmethyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-cyclopropyl-ethyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methyl-cyclohexyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methyl-cyclohexyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-methoxy-l-methyl-ethyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-fluoro-ethyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methanesulfonyl-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3-cyan-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1-(4-fluoro-phenyl)-ethyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-fluoro-l-fluoromethyl-ethyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-cyan-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid o-tolyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid m-tolyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-
-18-pyrrolidin-3-yl]-methyl-carbamic acid tetrahydro-pyran-4-ylmethyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid tetrahydro-furan-2-ylmethyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid tetrahydro-furan-3-ylmethyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1,1-dimethyl-propyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,2,2-trifluoro-1,1-dimethyl-ethyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1-(4-fluoro-phenyl)-propyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-cyano-2-fluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methoxy-cyclohexyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid cyclopropyl-(4-fluoro-phenyl)-methyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methyl-l-trifluoromethyl-cyclohexyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1,4-dimethyl-cyclohexyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1,4-dimethyl-cyclohexyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1-methyl-cyclopentyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 5-chloro-pyridin-2-yl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-cyano-3-fluoro-phenyl ester [(3S,4R)-1-(1-Acetyl-piperidine-4-carbonyl)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(3-methyl-oxetane-3-carbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(3-fluoro-cyclobutanecarbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(3,3-difluoro-cyclobutanecarbonyl)-piperidine-4-carbonyl] -
-19-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(3-methoxy-cyclobutanecarbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3 S,4R) -4-(4-Chloro-phenyl) -1- [ 1-(1-trifluoromethyl-cyclobutanecarbonyl) -piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(2-cyano-acetyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(1-cyano-cyclopropanecarbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-trifluoromethyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(2,2-difluoro-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(tetrahydro-pyran-4-carbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(2,2-dimethyl-tetrahydro-pyran-4-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(1-methoxymethyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(2,2-dimethyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1- [I - (5 -trifluoromethyl-pyridine-2 - carb onyl) -pip eridine-4-carbonyll-pyrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(5-fluoro-pyridine-2-carbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(6-oxo-piperidine-3-carbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(1-isopropyl-6-oxo-piperidine-3-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1-(1-Cyclobutanecarbonyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(3-methyl-oxetane-3-carbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(3-fluoro-cyclobutanecarbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(3,3-difluoro-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(3-methoxy-cyclobutanecarbonyl)-piperidine-4-
-20-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-trifluoromethyl-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1- [ 1-(2-Cyano-acetyl)-piperidine-4-carbonyl] -4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1- [ 1-(1-Cyano-cyclopropanecarbonyl)-piperidine-4-carbonyl] -4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-trifluoromethyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(2,2-difluoro-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(tetrahydro-pyran-4-carbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(2,2-dimethyl-tetrahydro-pyran-4-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-methoxymethyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(2,2-dimethyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(5-trifluoromethyl-pyridine-2-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3 S,4R) -4-(3,4-Dichloro-phenyl) -1- [ 1-(5-fluoro-pyridine-2-carbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(6-oxo-piperidine-3-carbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-isopropyl-6-oxo-piperidine-3-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1-(1-Acetyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1-[1-(2-Cyano-acetyl)-piperidine-4-carbonyl]-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1-(1-Acetyl-piperidine-4-carbonyl)-4-(4-fluoro-phenyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Fluoro-phenyl)-1- [ 1-(3-methyl-oxetane-3-carbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1- [ 1-(3-Fluoro-cyclobutanecarbonyl)-piperidine-4-carbonyl] -4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1- [ 1-(1-Cyano-cyclopropanecarbonyl)-piperidine-4-carbonyl] -4-(4-fluoro-phenyl)-
-21-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3 S,4R) -4-(4-Fluoro-phenyl) -1- [I -(I -trifluoromethyl-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Fluoro-phenyl)-1- [ 1-(5-trifluoromethyl-pyridine-2-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Fluoro-phenyl)-1- [ 1-(6-oxo-piperidine-3-carbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3 S,4R) -4-(3,4-Dichloro-phenyl) -1- [ 1-((S)-4-oxo-azetidine-2-carbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-fluoro-pyridin-3-yl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,6-dimethyl-pyridin-4-yl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid pyridin-3-yl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-methyl-pyridin-3-yl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid pyridin-4-yl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,6-dimethyl-pyridin-3-yl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 5-fluoro-pyridin-3-yl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-chloro-pyridin-2-yl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-chloro-5-fluoro-pyridin-3-yl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-chloro-pyridin-3-yl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-trifluoromethyl-pyridin-3-yl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyano-pyridin-3-yl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-fluoro-6-methyl-pyridin-3-yl ester [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(5'-trifluoromethyl-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1-(5'-Acetyl-3,4,5,6-tetrahydro-2H- [ 1,2']bipyridinyl-4-carbonyl)-4-(3,4-dichloro-
-22-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1-(5'-Chloro-3,4,5,6-tetrahydro-2H- [ 1,2'1 bipyridinyl-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(5'-fluoro-3,4,5,6-tetrahydro-2H- [
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1-(5'-Carbamoyl-3,4,5,6-tetrahydro-2H- [1,2']bipyridinyl-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-3-fluoro-phenyl)-1-(5'-fluoro-3,4,5,6-tetrahydro-2H- [
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-3-fluoro-phenyl)-1-(5'-chloro-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-3-fluoro-phenyl)-1-(5'-trifluoromethyl-3,4,5,6-tetrahydro-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1-(5'-Acetyl-3,4,5,6-tetrahydro-2H- [ 1,2']bipyridinyl-4-carbonyl)-4-(4-chloro-3-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(3-Chloro-4-fluoro-phenyl)-1-(5'-fluoro-3,4,5,6-tetrahydro-2H- [
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(3-Chloro-4-fluoro-phenyl)-1-(5'-chloro-3,4,5,6-tetrahydro-2H- [
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(3-Chloro-4-fluoro-phenyl)-1-(5'-trifluoromethyl-3,4,5,6-tetrahydro-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1-(5'-Acetyl-3,4,5,6-tetrahydro-2H- [ 1,2']bipyridinyl-4-carbonyl)-4-(3-chloro-4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-((S)-4-oxo-azetidine-2-carbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-hydroxy-3,4,5,6-tetrahydro-2H- [
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester or Acetic acid 4- {(3R,4S)-3-(4-chloro-phenyl)-4- [(4-fluoro-phenoxycarbonyl)-methyl-amino] -pyrrolidine-l-carbonyl}-3,4,5,6-tetrahydro-2H-[1,2'1 bipyridinyl-5'-yl ester.
-23-Compounds of formula Ib:

2 R` N All -R
(R1)õ , O
N~ >m R
O \( )o R7 R Ib wherein R' is hydrogen, halogen, cyano, lower alkyl or lower alkyl substituted by halogen;
n is 1, 2 or 3, if n is 2 or 3, R' can be different;

R2 is hydrogen or methyl;

R6 is hydrogen, di-lower alkyl or =0;

o and m may be independently from each other 0, 1 or 2;
R is hydrogen, halogen, or lower alkyl;

R7 is hydrogen, halogen, hydroxy, lower alkyl substituted by hydroxy, cyan, or lower alkoxy;

R4 is lower alkyl, lower alkyl substituted by halogen, lower alkyl substituted by hydroxy, lower alkyl substituted by cycloalkyl, (CH2)2,3-0-lower alkyl, CH(CH3)CH2-0-lower alkyl, (CH2)qCN, bicyclo [2.2. 1 ]heptanyl, (CH2)q cycloalkyl optionally substituted by lower alkyl, lower alkyl substituted by halogen, lower alkoxy or by halogen, or is (CH2)gheterocycloalkyl or is (CH2)garyl, CH(lower alkyl)-aryl, CH(cycloalkyl)-aryl, or is (CH2)gheteroaryl, which heterocycloalkyl, aryl or heteroaryl rings are optionally substituted by halogen, hydroxy, lower alkyl, lower alkyl substituted by halogen, S(0)2-lower alkyl, cyan or by lower alkoxy;
q is 0, l or 2;

or a pharmaceutically active salt thereof.
Compounds of formula Ib are the followings:

[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(trans-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester
-24-[(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-(trans-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(cis-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(cis-4-methoxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(trans-4-hydroxy-4-methyl-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(cis-4-hydroxy-4-methyl-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(cis-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-(cis-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(4-cyano-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(4-hydroxymethyl-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(4,4-difluoro-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(3-methoxy-cyclobutanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester.

Compounds of formula Ic:

2 R\ O-R

(R1) 4)-- N O

N ~--~
N
p om/
Ic wherein R' is hydrogen, halogen, cyano, lower alkyl or lower alkyl substituted by halogen;
n is 1, 2 or 3, if n is 2 or 3, R' can be different;
-25-R2 is hydrogen or methyl;

p is 0, l or 2;

R4 is lower alkyl, lower alkyl substituted by halogen, lower alkyl substituted by hydroxy, lower alkyl substituted by cycloalkyl, (CH2)2,3-O-lower alkyl, CH(CH3)CH2-O-lower alkyl, (CH2)qCN, bicyclo [2.2.1 ]heptanyl, (CH2)q cycloalkyl optionally substituted by lower alkyl, lower alkyl substituted by halogen, lower alkoxy or by halogen, or is (CH2)gheterocycloalkyl or is (CH2)garyl, CH(lower alkyl)-aryl, CH(cycloalkyl)-aryl, or is (CH2)gheteroaryl, which heterocycloalkyl, aryl or heteroaryl rings are optionally substituted by halogen, hydroxy, lower alkyl, lower alkyl substituted by halogen, S(O)2-lower alkyl, cyan or by lower alkoxy;
q is 0, l or 2;

or a pharmaceutically active salt thereof.

Compounds of formula Ic are the followings:
rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(morpholine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(3-morpholin-4-yl-propionyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester Compounds of formula Id:

2 R\ ' R

(R1)n O
N~~/( )R6 O O Id wherein R' is hydrogen, halogen, cyan, lower alkyl or lower alkyl substituted by halogen;
n is 1, 2 or 3, if n is 2 or 3, R' can be different;

R2 is hydrogen or methyl;

R6 is hydrogen, di-lower alkyl or =0;
-26-o and m may be independently from each other 0, 1 or 2;

R4 is lower alkyl, lower alkyl substituted by halogen, lower alkyl substituted by hydroxy, lower alkyl substituted by cycloalkyl, (CH2)2,3-O-lower alkyl, CH(CH3)CH2-O-lower alkyl, (CH2)qCN, bicyclo [2.2. 1 ]heptanyl, (CH2)q cycloalkyl optionally substituted by lower alkyl, lower alkyl substituted by halogen, lower alkoxy or by halogen, or is (CH2)gheterocycloalkyl or is (CH2)garyl, CH(lower alkyl)-aryl, CH(cycloalkyl)-aryl, or is (CH2)gheteroaryl, which heterocycloalkyl, aryl or heteroaryl rings are optionally substituted by halogen, hydroxy, lower alkyl, lower alkyl substituted by halogen, S(O)2-lower alkyl, cyan or by lower alkoxy;
q is 0, l or 2;

or a pharmaceutically active salt thereof.
Compounds of formula Id are the followings:
rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-(tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(2,2-dimethyl-tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(tetrahydro-pyran-3-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-4-(4-Chloro-phenyl)-1-(tetrahydro-furan-3-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-(tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester
-27-Compounds of formula le 2 R\ ~ -R

(R1) N O
n N
O
O
NH2 le wherein R' is hydrogen, halogen, cyano, lower alkyl or lower alkyl substituted by halogen;
n is 1, 2 or 3, if n is 2 or 3, R' can be different;

R2 is hydrogen or methyl;

R4 is lower alkyl, lower alkyl substituted by halogen, lower alkyl substituted by hydroxy, lower alkyl substituted by cycloalkyl, (CH2)2,3-O-lower alkyl, CH(CH3)CH2-O-lower alkyl, (CH2)qCN, bicyclo [2.2. 1 ]heptanyl, (CH2)q cycloalkyl optionally substituted by lower alkyl, lower alkyl substituted by halogen, lower alkoxy or by halogen, or is (CH2)gheterocycloalkyl or is (CH2)garyl, CH(lower alkyl)-aryl, CH(cycloalkyl)-aryl, or is (CH2)gheteroaryl, which heterocycloalkyl, aryl or heteroaryl rings are optionally substituted by halogen, hydroxy, lower alkyl, lower alkyl substituted by halogen, S(O)2-lower alkyl, cyan or by lower alkoxy;
q is 0, l or 2;

or a pharmaceutically active salt thereof.
A compound of formula le is the following:
rac-[(3R,4S)-1-(3-Carbamoyl-propionyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester Compounds of formula If 2 \ R\ ' R

(R1)n , N O

N N ,( )Jrõ R6 O ( )o If
-28-wherein R' is hydrogen, halogen, cyano, lower alkyl or lower alkyl substituted by halogen;
n is 1, 2 or 3, if n is 2 or 3, R' can be different;

R2 is hydrogen or methyl;

R6 is hydrogen, di-lower alkyl or =0;

o and m may be independently from each other 0, 1 or 2;

R4 is lower alkyl, lower alkyl substituted by halogen, lower alkyl substituted by hydroxy, lower alkyl substituted by cycloalkyl, (CH2)2,3-0-lower alkyl, CH(CH3)CH2-0-lower alkyl, (CH2)qCN, bicyclo [2.2. 1 ]heptanyl, (CH2)q cycloalkyl optionally substituted by lower alkyl, lower alkyl substituted by halogen, lower alkoxy or by halogen, or is (CH2)gheterocycloalkyl or is (CH2)garyl, CH(lower alkyl)-aryl, CH(cycloalkyl)-aryl, or is (CH2)gheteroaryl, which heterocycloalkyl, aryl or heteroaryl rings are optionally substituted by halogen, hydroxy, lower alkyl, lower alkyl substituted by halogen, S(0)2-lower alkyl, cyan or by lower alkoxy;
q is 0, l or 2;

or a pharmaceutically active salt thereof.

A compound of formula If is the following:

[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(cis-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester Compounds of formula Ig 2 R\ O-R

(R1) 4D- N O
N~~/( )~R6 S=0 0 ~~ \
)o '0' Ig wherein R' is hydrogen, halogen, cyan, lower alkyl or lower alkyl substituted by halogen;
n is 1, 2 or 3, if n is 2 or 3, R' can be different;
-29-R2 is hydrogen or methyl;

R6 is hydrogen, di-lower alkyl or =0;

o and m may be independently from each other 0, 1 or 2;

R4 is lower alkyl, lower alkyl substituted by halogen, lower alkyl substituted by hydroxy, lower alkyl substituted by cycloalkyl, (CH2)2,3-0-lower alkyl, CH(CH3)CH2-0-lower alkyl, (CH2)qCN, bicyclo [2.2. 1 ]heptanyl, (CH2)q cycloalkyl optionally substituted by lower alkyl, lower alkyl substituted by halogen, lower alkoxy or by halogen, or is (CH2)gheterocycloalkyl or is (CH2)garyl, CH(lower alkyl)-aryl, CH(cycloalkyl)-aryl, or is (CH2)gheteroaryl, which heterocycloalkyl, aryl or heteroaryl rings are optionally substituted by halogen, hydroxy, lower alkyl, lower alkyl substituted by halogen, S(0)2-lower alkyl, cyan or by lower alkoxy;
q is 0, l or 2;

or a pharmaceutically active salt thereof.
A compound of formula Ig is the following:
[(3 S,4R)-4-(4-Chloro-phenyl)-1-(1,1-dioxo-hexahydro-1)6-thiopyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester.

A further embodiment of the invention are compounds of formula z R4 (R1) R \ N 0 n N

wherein R' is hydrogen, halogen, cyan, lower alkyl or lower alkyl substituted by halogen;
n is 1, 2 or 3, if n is 2 or 3, R' can be different;

R2 is hydrogen or methyl;
-30-R3 is (CH2)r C(O)NH2 wherein r is 1 or 2 or is a non aromatic heterocyclic group /( )m R6 Oo wherein X is N or CH;

Y is -C(R)(R7)-; -N(R7')-, -S(0)2 or 0;
R6 is hydrogen, di-lower alkyl or =0;

o and m may be independently from each other 0, 1 or 2;
p is 0, l or 2;

R is hydrogen, halogen, or lower alkyl;

R7 is hydrogen, halogen, hydroxy, lower alkyl substituted by hydroxy, cyano, or lower alkoxy;

R7' is hydrogen, -C(O)-lower alkyl, -C(0)0-lower alkyl, -C(O)CH2O-lower alkyl, or is cycloalkyl, -CH2-cycloalkyl or -C(O)-cycloalkyl, wherein the cycloalkyl groups are optionally substituted by lower alkyl, or is -C(O)-heterocycloalkyl or heterocycloalkyl, or is heteroaryl, which heterocycloalkyl or heteroaryl groups are optionally substituted by halogen, lower alkyl, lower alkoxy, lower alkyl substituted by halogen, C(O)NH-lower alkyl, C(O)NH2, C(O)-lower alkyl, S(0)2-lower alkyl or cyano;

Z is -0-, -NH- or -N(lower alkyl)-;

R4 is lower alkyl, lower alkyl substituted by halogen, lower alkyl substituted by hydroxy, lower alkyl substituted by cycloalkyl, (CH2)2,3-0-lower alkyl, CH(CH3)CH2-0-lower alkyl, (CH2)qCN, bicyclo [2.2. 1 ]heptanyl, (CH2)q cycloalkyl optionally substituted by lower alkyl, lower alkyl substituted by halogen, lower alkoxy or by halogen, or is (CH2)gheterocycloalkyl or is (CH2)garyl, CH(lower alkyl)-aryl, CH(cycloalkyl)-aryl, or is (CH2)gheteroaryl, which heterocycloalkyl, aryl or heteroaryl rings are optionally substituted by halogen, hydroxy, lower alkyl, lower alkyl substituted by halogen, S(0)2-
-31-lower alkyl, cyano or by lower alkoxy;
q is 0, l or 2;

or a pharmaceutically active salt thereof.

Preferred compounds of formula I are those, wherein R2 is methyl.
The present compounds of formula I

N-~

O
N

O"k R3 I

and their pharmaceutically acceptable salts can be prepared by processes described below, which process comprises a) coupling a compound of formula II

(R1)õ \ R~ Z-R4 N
O

N
H II

with a suitable carbamoyl chloride, acid chloride or carboxylic acid to afford a compound of formula I

(R1~n R\ Z-R4 N-~
O

N
O1'~'R3 I
wherein the substituents R', R2, R3, R4 and Z and n are as defined above and if desired, converting the compounds obtained into pharmaceutically acceptable acid
-32-addition salts;

or b) coupling a compound with formula III

(R1)n R\
NH
N

III
with a corresponding chloroformate, acid anhydride or a mixture of triphosgene and corresponding alcohol or amine to afford a compound of formula I

(R1)n \ R~ Z-R4 N<
O
N

wherein the substituents R', R2, R3, R4 and Z and n are as defined above and if desired, converting the compounds obtained into pharmaceutically acceptable acid addition salts.

The following schemes 1 and 2 describe the processes for the preparation of compounds of formula I in more detail. The starting material of formula II is a known compound and may be prepared according to methods known in the art.
-33-Scheme 1 (R') COII SII iMe3 (R)n (R)+ NJ NO2 n NH2 NO2 Bn V N N
IV Bn VI Bn Vii (R1)n R\ (R')n R N~Z-R4 NH O
N
N Bn Bn VIII IX

(R')n R N~Z-R4 (R')n QN R4 O O
H

(R1)n \ R N
~Z-R4 R N~Z-R4 O O
N N
O O
N' NH
IA BOC IB
wherein the substituents R', R2, R3, R4 and Z are as defined above According to scheme 1, the 3,4-disubstituted pyrrolidine VI is prepared via a stereo specific 1,3-dipolar cycloaddition between the 2-nitrostyrene derivative IV and the azomethine ylide generated in situ from the N-(methoxymethyl)-N-(phenylmethyl)-N-(trimethylsilyl)methylamine V in the presence of a catalytic amount of acid, such as TFA. Reduction of the nitro moiety of VI
using standard conditions for example SnC12.H20 yields VII. The amino moiety of VII is subsequently alkylated to produce VIII. Reaction of VIII with an acid anhydride, chloroformate or a mixture of triphosgene and an alcohol or amine in the presence of a base affords IX.
-34-Selective N-debenzylation is then carried out using several known procedures which are compatible with the substitution patterns of the aromatic rings to afford II.
Finally, derivatives I
are prepared via a coupling with a suitable carbamoyl chloride, acid chloride or carboxylic acide.
Alternatively, pyrrolidine II is coupled with the corresponding acid to afford a compound of formula IA which can be deprotected to afford the piperidine of formula IB
which might be further derivatised to obtain final compounds of formula I.

Scheme 2 (R1 RV (R)_ R (R)n R (R)n R
NH N-BOC N-BOC N-BOC
N N N
Bn Bn H OR3 VIII X XI XII
(R1)n R2 (R)f R2 4 NH N- Z
O
N N
OI'll R3 OR3 XIII I

wherein the substituents R', R2, R3, R4 and Z are as defined above According to scheme 2, the secondary amine of the intermediates VII can be protected, for instance with a Boc group to afford a compound of formula X, followed by a selective debenzylation to produce XI. Then a coupling with a suitable carbamoyl chloride, acid chloride or carboxylic acid gives XII. Deprotection with TFA affords the free amine XIII, which after reaction with an acid anhydride, chloroformate or a mixture of triphosgene and an alcohol or amine in the presence of a base affords derivatives of formula I.
Example 1 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester
-35-a a \ o O
N

O
N,J, O

a) rac- 3R,4S, -1-Benzyl-3 -(3,4-dichloro-phenyl -4-nitro-pyrrolidine A solution of N-(methoxymethyl)-N-(phenylmethyl)-N-(trimethylsilyl)methylamine (32.50 g, 0.135 mol) in CH2C12 (70 mL) was added drop wise, over a 30 minutes period, to a stirred solution of 1,2-dichloro-4-((E)-2-nitro-vinyl)-benzene (19.60 g, 0.09 mol) and trifluoroacetic acid (1.54 mL, 0.013 mol) in CH2C12 (160 mL) at 0 C. The ice bath was removed, and the solution was stirred at 25 C for an additional 48 h. It was then concentrated and purification by flash chromatography (Si02, EtOAc/H 1:6) afforded 25.0 g (79 %) of the title compound as a yellow oil. ES-MS m/e: 351.0 (M+H+).
b) rac- 3S,4R -l-Benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-ylamine To a stirred solution of rac-(3R,4S)-1-benzyl-3-(3,4-dichloro-phenyl)-4-nitro-pyrrolidine (11.60 g, 33.0 mmol) in EtOAc (200 mL) was added in one portion SnC12.2H20 (37.26 g, 0.165 mol).
The reaction mixture was then heated at reflux for 4 hours, cooled down to ambient temperature and a saturated aqueous solution of NaHCO3 was added. The salts were filtered off and the product extracted with EtOAc. The organic phases were then dried over Na2SO4, and concentration under vacuum gave 5.7 g (54 %) of rac-(3S,4R)-1-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-ylamine as a yellow oil. The product was then used in the next step without further purification. ES-MS m/e: 321.2 (M+H+).
c) rac-[(3S,4R -l-Benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yll-methyl-amine To a solution of rac-(3S,4R)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-ylamine (0.54 g, 1.68 mmol) in THE (5 mL) was added a solution of K2C03 (0.46 g, 3.36 mmol) in H2O (3 mL).
After 10 minutes, ethyl chloroformate (0.18 mL, 1.85 mmol) was added and stirring was continued at ambient temperature for an additional 2 h. The intermediate carbamate was then extracted with Et20, dried over Na2SO4 and concentrated under vacuo to give viscous oil. The oil was taken up in THE (5 mL) and a solution of borane in THE (1M) was added (6.7 mL). The reaction mixture was then heated at 65 C over night, cooled to ambient temperature and
-36-carefully quenched with conc. HC1(5 mL). The mixture was then heated at 80 C
for 2 h, cooled to ambient temperature, concentrated under vacuo, diluted with Et20 (20 mL) and neutralized with an aqueous solution of NaHCO3. The organic phases were dried over Na2SO4 and the product purified by flash chromatography (Si02, CH2C12/MeOH 9:1) to afford 0.29 g (51 %) of rac-[(3S,4R)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-amine as a colorless oil.
ES-MS m/e: 335.3(M+H+).
d) rac-[(3R,4S)-l-Benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid tert-butyl ester To a solution of rac-[(3S,4R)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-amine (2.85 g, 8.50 mmol) in dichloromethane (29 mL) was added at ambient temperature triethylamine (2.4 mL, 17.0 mmol), 4-dimethylaminopyridine (0.10 g, 0.85 mmol) and di-tert.-butyl-dicarbonate (2.04 g, 9.35 mmol). The solution was stirred for 2 h at ambient temperature.
The solution was diluted with water (30 mL). The organic layer was washed with water (30 mL), the aqueous layers were extracted with dichloromethane (20 mL), dried over sodium sulfate and concentrated. Purification by chromatography (Si02, heptane:ethyl acetate =
100:0 to 60:40) afforded the title compound (3.52 g, 95 %) as a light brown oil. MS m/e: 435.2 [M+H]+.

e) rac-[(3R,4S)-4-(3,4-Dichloro-phenyl pyrrolidin-3-yll-methyl-carbamic acid tert-butyl ester To a solution of rac-[(3R,4S)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester (3.50 g, 8.04 mmol) in toluene (50 mL) was added under an atmosphere of nitrogen N,N-diisopropyl ethyl amine (1.86 mL, 10.9 mmol). The flask was cooled with a water bath and 1-chloroethyl chloroformate (1.14 mL, 10.5 mmol) was added during 2 min. After stirring for 2 h at ambient temperature the solution stood over night at 5 C.
The reaction mixture was concentrated in vacuo. After the addition of methanol (50 mL) it was stirred for 4 h at ambient temperature. Concentration afforded the title compound (2.95 g, 99 %) as a light brown oil. MS m/e: 345.1 [M+H]+.

fl rac-{(3R,4S)-4-(3,4-Dichloro-phenyl [mil-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyll-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester To a solution of rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester (2.78 g, 7.56 mmol) in DMF (28 mL) were added at 0 C N,N-diisopropyl ethyl amine (8.26 mL, 48.2 mmol), 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carboxylic acid (2.78 g, 8.04 mmol), O-(7-azabenzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate (3.67 g, 9.65 mmol). The resulting solution was stirred for 6 h at ambient
-37-temperature. After diluting with EtOAc (50 mL) the solution was washed twice with water (50 mL) and brine (50 mL). The aqueous layers were extracted with EtOAc (50 mL) and dried over sodium sulfate. Concentration and purification by chromatography (Si02, heptane:ethyl acetate:methanol = 80:20:0 to 0:90:10) afforded the title compound (3.06 g, 75 %) as a light brown foam. MS m/e: 538.3 [M+H]+.

Example 2 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester a a \ o N

N
rjl~

a) rac-{4-[(3S,4R)-3-(3,4-Dichloro-phenyl -4-methylamino-pyrrolidine-l-carbonyll-piperidin-l-yll -(1-methyl-cyclopropyl)-methanone Under an atmosphere of nitrogen to a solution of rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester (3.02 g, 5.61 mmol) in dichloromethane (30 mL) was added at ambient temperature trifluoroacetic acid (4.3 mL, 56 mmol) and stirred for 20 h at this temperature. The reaction mixture was added slowly onto an aqueous solution of sodium carbonate (1M, 60 mL).
The organic layer was separated and washed with brine (50 mL). The aqeous layers were extracted with dichloromethane (30 mL), dried over sodium sulfate and concentrated.
Purification by chromatography (Si02, heptane:ethyl acetate:methanol = 50:50:0 to 0:90:10) afforded the title compound (1.79 g, 73 %) as a light brown oil. MS m/e: 338.3 [M+H]+.

b) rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-I-[I-(l-methyl-cyclopropanecarbonyl piperidine-4-carbonyll-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester To a solution of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-1-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone (50 mg, 0.11 mmol) in dichloromethane (1 mL) were added N,N-diisopropyl ethyl amine (29 l, 0.17 mmol), 4-fluorophenyl chloroformate (19 l, 0.15 mmol) and the resulting mixture was stirred for 18 h at
-38-ambient temperature. It was diluted with EtOAc (15 mL) and washed with an aqueous solution of sodium carbonate (1 M, 10 mL). The aqeous layers were extracted with dichloromethane (30 mL), dried over sodium sulfate and concentrated. Purification by chromatography (Si02, heptane:ethyl acetate = 100:0 to 90:10) afforded the title compound (45 mg, 68 %) as a light brown oil. MS m/e: 576.3 [M+H]+.

Example 3 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid cyclopentyl ester C
ci bY\N \ o N-O
N

O
O

In analogy to the procedure described for the synthesis of example 2 (step b), the title compound rac- {(3R,4S)-4-(3,4-dichloro-phenyl)-1-El -(1 -methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid cyclopentyl ester was prepared from rac-{4-[(3 S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin- l -yl} -(1-methyl-cyclopropyl)-methanone using cyclopentyl chloroformate instead of 4-fluorophenyl chloroformate and was obtained as a white solid. MS m/e: 550.3 [M+H]+.
Example 4 rac- [(3R,4 S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester CI F

NN

N
>-j
-39-a) rac-[(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid tert-butyl ester In analogy to the procedure described for the synthesis of example 1 (step f), the title compound rac-[(3R,4S)-1-(1-cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester was prepared from rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester using 1-(1-cyclopropylmethyl)-piperidine-4-carboxylic acid instead of 1 -(1 -methyl-cyclopropanecarbonyl)-piperidine-4-carboxylic acid and was obtained as a brown oil which was directly used in the next step without purification.
b) rac- 1-Cyclopropylmethyl-piperidin-4-yl)-[(3S,4R)-3-(3,4-dichloro-phenyl -4-methylamino-pyrro lidin- l -yll -methanone In analogy to the procedure described for the synthesis of example 2 (step a), the title compound rac-(l -Cyclopropylmethyl-piperidin-4-yl)-[(3 S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidin-l-yl]-methanone was prepared from rac-[(3R,4S)-1-(1-cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester instead of rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1 -(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester and was obtained as a brown oil. MS m/e: 410.2 [M+H]+.
c) rac-[(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester In analogy to the procedure described for the synthesis of example 2 (step b), the title compound rac-[(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-(1-cyclopropylmethyl-piperidin-4-yl)-[(3 S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidin-1-yl]-methanone instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-1-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone and was obtained as a light yellow oil. MS m/e: 548.2 [M+H]+.

Example 5 {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester
-40-CI Chiral CI \ 0 N

d \\0 N

and Example 6 {(3 S,4R)-4-(3,4-Dichlo ro-phenyl)-1- [ 1-(1-methyl-cyclop ropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester Cl Chiral CI \ 0 N- \ /

N

Rac- {(3R,4S)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester was subjected to column chromatography on chiral phase to yield {(3R,4S)-4-(3,4-dichloro-phenyl)-1-[l-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester (MS(m/e): 576.2 [M+H]+) as a white foam and {(3S,4R)-4-(3,4-dichloro-phenyl)-l-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -methyl-carbamic acid 4-fluoro-phenyl ester (MS(m/e): 576.2 [M+H]+) as a white foam.

Example 7 rac-[(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid phenyl ester
-41-CI
N/

N

In analogy to the procedure described for the synthesis of example 2 (step b), the title compound rac-[(3R,4S)-1-(1-cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid phenyl ester was prepared from rac-(1-cyclopropylmethyl-piperidin-4-yl)-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidin-1-yl]-methanone instead of rac- {4-[(3 S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin- l -yl}-(1-methyl-cyclopropyl)-methanone using phenyl chloroformate instead of fluorophenyl chloroformate and was obtained as a colorless oil. MS m/e: 530.2 [M]+.

Example 8 rac- [(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid p-tolyl ester cl ., N~

N

ON

In analogy to the procedure described for the synthesis of example 2 (step b), the title compound rac-[(3R,4S)-1-(1-cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid p-tolyl ester was prepared from rac-(1-cyclopropylmethyl-piperidin-4-yl)-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidin-1-yl]-methanone instead of rac- {4-[(3 S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin- l -yl}-(1-methyl-cyclopropyl)-methanone using p-tolyl chloroformate instead of fluorophenyl chloroformate and was obtained as a colorless oil. MS m/e: 544.2 [M]+.
-42-Example 9 rac- [(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methoxy-phenyl ester CI
CI::, \o/
\\0 N

N

In analogy to the procedure described for the synthesis of example 2 (step b), the title compound rac-[(3R,4S)-1-(1-cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methoxy-phenyl ester was prepared from rac-(1-cyclopropylmethyl-piperidin-4-yl)-[(3 S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidin-1-yl]-methanone instead of rac- {4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-1-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone using 4-methoxy-phenyl chloroformate instead of fluorophenyl chloroformate and was obtained as a colorless oil. MS
m/e: 560.2 [M]+.

Example 10 rac- [(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-chloro-phenyl ester CI
N

N

In analogy to the procedure described for the synthesis of example 2 (step b), the title compound rac-[(3R,4S)-1-(1-cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-chloro-phenyl ester was prepared from rac-(1-cyclopropylmethyl-piperidin-4-yl)-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidin-l-yl]-methanone instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-
-43-piperidin- l-yl}-(1-methyl-cyclopropyl)-methanone using 4-chloro-phenyl chloroformate instead of fluorophenyl chloroformate and was obtained as a colorless oil. MS m/e:
564.2 [M]+.

Example 11 rac- [(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid butyl ester CI NA
c1:0 NN

N

In analogy to the procedure described for the synthesis of example 2 (step b), the title compound rac-[(3R,4S)-1-(1-cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid butyl ester was prepared from rac-(1-cyclopropylmethyl-piperidin-4-yl)-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidin-1-yl]-methanone instead of rac-{4-[(3 S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin-1-yl} -(1-methyl-cyclopropyl)-methanone using butyl chloroformate instead of fluorophenyl chloroformate and was obtained as a colorless oil. MS m/e: 510.4 [M]+.

Example 12 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-chloro-phenyl ester CI
CI / , N 0 \ CI

N

N

In analogy to the procedure described for the synthesis of example 2 (step b), the title compound rac- {(3R,4S)-4-(3,4-dichloro-phenyl)-1-El -(1 -methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-chloro-phenyl ester was prepared from rac-{4-[(3 S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin- l -yl} -(1-
-44-methyl-cyclopropyl)-methanone using 4-chlorophenyl-chloroformate instead of 4-fluorophenyl chloroformate and was obtained as a white foam. MS m/e: 592.3 [M]+.

Example 13 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid phenyl ester ci N-~ \
N

O
N

O

In analogy to the procedure described for the synthesis of example 2 (step b), the title compound rac- {(3R,4S)-4-(3,4-dichloro-phenyl)-1-El -(1 -methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid phenyl ester was prepared from rac-{4-[(3 S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone using phenyl chloroformate instead of 4-fluorophenyl chloroformate and was obtained as a light brown foam. MS m/e: 558.0 [M]+.

Example 14 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid p-tolyl ester ci c \
- N-o\

N

N

In analogy to the procedure described for the synthesis of example 2 (step b), the title compound rac- {(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1 -(1 -methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid p-tolyl-phenyl ester was prepared from rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-
-45-methyl-cyclopropyl)-methanone using p-tolyl chloroformate instead of 4-fluorophenyl chloroformate and was obtained as a light brown foam. MS m/e: 572.2 [M]+.

Example 15 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid p-methoxyphenyl ester Cl CI / \ N 0 \ /
~ 0 N

N

In analogy to the procedure described for the synthesis of example 2 (step b), the title compound rac- {(3R,4S)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid p-methoxy-phenyl ester was prepared from rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-l-yl} -(1-methyl-cyclopropyl)-methanone using p-methoxyphenyl chloroformate instead of 4-fluorophenyl chloroformate and was obtained as a light brown foam. MS m/e:
588.2 [M]+.
Example 16 {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid p-tolyl ester Cl Chiral Cl ~ bo \ o N~ \~
N

N

and
-46-Example 17 {(3 S,4R)-4-(3,4-Dichlo ro-phenyl)-1- [ 1-(1-methyl-cyclop ropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid p-tolyl ester Cl Chiral CI ~N 0 \ /

N

N

rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid p-tolyl ester was subjected to column chromatography on chiral phase to yield {(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid p-tolyl ester (MS(m/e): 572.3 [M]+) as an off-white foam and {(3S,4R)-4-(3,4-dichloro-phenyl)-1-[l-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid p-tolyl ester (MS(m/e): 572.3 [M]+) as an colorless oil.

Example 18 {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-chlorophenyl ester Cl Chiral CI / \ N_ j '~ Cl N

tN 15 0 and Example 19 {(3 S,4R)-4-(3,4-Dichlo ro-phenyl)-1- [ 1-(1-methyl-cyclop ropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-chlorophenyl ester
-47-CI Chiral CI N_ j -Cl N

N

rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-El -(1 -methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-chlorophenyl ester was subjected to column chromatography on chiral phase to yield {(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-chlorophenyl ester (MS(m/e): 592.3 [M]+) as an off-white foam and {(3S,4R)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -methyl-carbamic acid 4-chlorophenyl ester (MS(m/e): 592.3 [M]+) as an off-white foam.

Example 20 [(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methoxy-phenyl ester CI Chiral CI / \ N 0 \ / 0 N

0 n N /, and Example 21 [(3S,4R)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methoxy-phenyl ester
-48-CI Chiral CI \N 0 \ /

N

N

rac-[(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methoxy-phenyl ester was subjected to column chromatography on chiral phase to yield [(3R,4S)-1 -(1-cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methoxy-phenyl ester (MS(m/e): 560.2 [M]+) as a colorless oil and [(3S,4R)-1-(1-cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methoxy-phenyl ester (MS(m/e): 560.2 [M]+) as a colorless oil.

Example 22 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,2-dimethyl-propyl ester ci cl~
rv 0 Y
N

O
N

O

In analogy to the procedure described for the synthesis of example 2 (step b), the title compound rac- {(3R,4S)-4-(3,4-dichloro-phenyl)-1-El -(1 -methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,2-dimethyl-propyl ester was prepared from rac- {4-[(3 S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin- l -yl}-(1-methyl-cyclopropyl)-methanone using neopentyl chloroformate instead of 4-fluorophenyl chloroformate and was obtained as a yellow foam. MS m/e: 552.3 [M]+.

Example 23 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid prop-2-ynyl ester
-49-ci cl~
-;' rvuo N

O
N

O

In analogy to the procedure described for the synthesis of example 2 (step b), the title compound rac- {(3R,4S)-4-(3,4-dichloro-phenyl)-1-El -(1 -methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid prop-2-ynyl ester was prepared from rac-{4-[(3 S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone using propargyl chloroformate instead of 4-fluorophenyl chloroformate and was obtained as a yellow foam. MS m/e: 552.3 [M]+.

Example 24 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid cyclopropylmethyl ester ci cl~
N O
N

O
N

O

To a solution of l,l'-carbonyl-diimidazole (102 mg, 0.627 mmol) in dioxane (1 mL) was added hydroxymethylcyclopropane (55 l, 0.68 mmol). After stirring for 15 min at ambient temperature rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone (50 mg, 0.11 mmol) was added and the solution was irradiated in the microwave for 900 s at 170 C and 1800 s at 200 C. The reaction mixture was diluted with ethyl acetate (15 mL) and washed with water (15 mL) and brine (15 mL). The organic layers were extracted with ethyl acetate, dried over sodium sulfate and concentrated. Purification by chromatography (Si02, ethyl acetate:methanol =
100:0 to 85:15) afforded the title compound (21 mg, 34%) as a light brown oil. MS m/e: 536.4 [M]+.
-50-Example 25 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-arbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester ci ci~
N

N

N

To a solution of triphosgene (68 mg, 0.23 mmol) in dichloromethane (0.5 mL) was added 2-cyclopropylethanol (69 mg, 0.80 mmol). After the solution was stirred for 45 min at ambient temperature N,N-diisopropyl ethyl amine (156 l, 0.912 mmol) and rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin-1-yl} -(1-methyl-cyclopropyl)-methanone (50 mg, 0.11 mmol) were added and the solution was stirred for 3 d at ambient temperature. It was diluted with ethyl acetate (15 mL) and washed with aqueous sodium carbonate (1 M, 15 mL) and brine (15 mL). The aqueous layers were extracted with ethyl acetate, dried over sodium sulfate and concentrated. Purification by chromatography (Si02, ethyl acetate:methanol = 100:0 to 80:20) afforded the title compound (59 mg, 94%) as an off-white foam. MS m/e: 550.3 [M]+.

Example 26 rac-{(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester a F

N
Ny N 0 a) rac- 3S,4R -l-Benzyl-3-(4-chloro-phenyl -4-nitro-pyrrolidine In analogy to the procedure described for the synthesis of example 1 (step a), the title compound rac-(3S,4R)-l-benzyl-3-(4-ch oro-phenyl)-4-nitro-pyrrolidi e was prepared from 1-ch oro-4-
-51-((E)-2-nitro-vinyl)-benzene instead of 1,2-dichloro-4-((E)-2-nitro-vinyl)-benzene and was obtained as a light pink oil. MS m/e: 317.1 [M]+.

b) rac- 3R,4S, -l-Benzyl-4-(4-chloro-phenyl)-pyrrolidin-3-ylamine In analogy to the procedure described for the synthesis of example 1 (step b), the title compound rac-(3R,4S)-1-benzyl-4-(4-chloro-phenyl)-pyrrolidin-3-ylamine was prepared from rac-(3S,4R)-1-benzyl-3-(4-chloro-phenyl)-4-nitro-pyrrolidine instead of rac-(3R,4S)-1-Benzyl-3-(3,4-dichloro-phenyl)-4-nitro-pyrrolidine and was obtained as a light brown oil. MS
m/e: 287.1 [M+H]+.

c) rac-[(3R,4S)-l-Benzyl-4-(4-chloro-phenyl)-pyrrolidin-3-yll-methyl-amine In analogy to the procedure described for the synthesis of example 1 (step c), the title compound rac-[(3R,4S)-l-benzyl-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-amine was prepared from rac-(3R,4S)-l-benzyl-4-(4-chloro-phenyl)-pyrrolidin-3-ylamine instead of rac-(3S,4R)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-ylamine and was obtained as a colorless oil. MS
m/e: 301.2 [M+H]+.

d) rac-[(3R,4S)-l-Benzyl-4-(4-chloro-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid tert-butyl ester In analogy to the procedure described for the synthesis of example 1 (step d), the title compound rac-[(3R,4S)-l-benzyl-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester was prepared from rac-[(3R,4S)-l-benzyl-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-amine instead of rac-[(3R,4S)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-amine and was obtained as a white foam. MS m/e: 401.3 [M+H]+.

e) rac-[(3R,4S)-4-(4-Chloro-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid tert-butyl ester In analogy to the procedure described for the synthesis of example 1 (step e), the title compound rac-[(3R,4S)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester was prepared from rac-[(3R,4S)-l-benzyl-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester instead of rac-[(3R,4S)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester and was obtained as a brown oil. MS m/e:
311.2 [M+H]+.
f) rac-{(3R,4S)-4-(4-Chloro-phenyl)-I-[I-(l-methyl-cyclopropanecarbonyl piperidine-4-carbonyll-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester In analogy to the procedure described for the synthesis of example 1 (step f), the title compound
-52-rac- {(3R,4S)-4-(4-chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester was prepared from rac-[(3R,4S)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester instead of rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester and was obtained as a light brown foam. MS m/e: 504.3 [M]+.

g) rac-{4-[(3S,4R)-3-(4-Chloro-phenyl -4-methylamino-pyrrolidine-l-carbonyll-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone In analogy to the procedure described for the synthesis of example 2 (step a), the title compound rac- {4-[(3 S,4R)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin- l -yl} -(1-methyl-cyclopropyl)-methanone was prepared from rac-{(3R,4S)-4-(4-chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester instead of rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester and was obtained as a light brown foam. MS m/e: 404.4 [M+H]+.

h) rac-{(3R,4S)-4-(4-Chloro-phenyl [mil-methyl-cyclopropanecarbonyl piperidine-carbonyll-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester In analogy to the procedure described for the synthesis of example 2 (step b), the title compound rac- {(3R,4S)-4-(4-chloro-phenyl)-1-[1 -(1 -methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-{4-[(3S,4R)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone instead of rac- {4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone and was obtained as a light yellow foam. MS m/e: 542.3 [M]+.

Example 27 rac-{(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid butyl ester
-53-CI

N
N

/N

In analogy to the procedure described for the synthesis of example 2 (step b), the title compound rac- {(3R,4S)-4-(4-chloro-phenyl)-1-El -(1 -methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid butyl ester was prepared from rac-{4-[(3S,4R)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone using butyl chloroformate instead of 4-fluoro-phenyl chloroformate and was obtained as a light yellow foam.
MS m/e: 504.2 [M]+.

Example 28 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-chloro-pyridin-3-yl ester CI
a \ 0 N- \ / CI
/ N
N

/N

In analogy to the procedure described for the synthesis of example 25, the title compound rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[l -(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-chloro-pyridin-3-yl ester was prepared from rac-{4-[(3 S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin- l -yl} -(1-methyl-cyclopropyl)-methanone using 2-chloro-5-hydroxypyridine instead of 2-cyclopropylethanol and was obtained as a light brown foam. MS m/e: 593.2 [M]+.

Example 29 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3,3-trifluoro-propyl ester
-54-CI F

CI / \ 0 F
F
N

N

In analogy to the procedure described for the synthesis of example 25, the title compound rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3,3-trifluoro-propyl ester was prepared from rac-{4-[(3 S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone using 3,3,3-trifluoro-l-propanol instead of 2-cyclopropylethanol and was obtained as a yellow foam. MS m/e: 578.2 [M]+.

Example 30 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3-dimethyl-butyl ester cI
cl-b 0--/,~
N -~

N

In analogy to the procedure described for the synthesis of example 25, the title compound rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3-dimethyl-butyl ester was prepared from rac-{4-[(3 S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone using 3,3-dimethyl-l-butano1 instead of 2-cyclopropylethanol and was obtained as a light yellow foam. MS m/e: 566.3 [M]+.

Example 31 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tetrahydro-pyran-4-ylmethyl ester
-55-C1 ~ \
ci- N

N

In analogy to the procedure described for the synthesis of example 25, the title compound rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -methyl-carbamic acid tetrahydro-pyran-4-ylmethyl ester was prepared from rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone using tetrahydro-2H-pyran-4-ylmethano1 instead of 2-cyclopropylethanol and was obtained as a light yellow foam. MS m/e: 580.2 [M]+.

Example 32 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid cyclopentylmethyl ester ci ci \ o N-~

N

/N

In analogy to the procedure described for the synthesis of example 25, the title compound rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -methyl-carbamic acid cyclopentylmethyl ester was prepared from rac- {4-[(3 S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone using cyclopentanemethanol instead of 2-cyclopropylethanol and was obtained as a light yellow foam. MS m/e: 566.3 [M]+.

Example 33 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3-methyl-oxetan-3-ylmethyl ester
-56-ci 0 0-\>e N
O
N

/N

In analogy to the procedure described for the synthesis of example 25, the title compound rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3-methyl-oxetan-3-ylmethyl ester was prepared from rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone using 3-methyl-3-oxetanemethanol instead of 2-cyclopropylethanol and was obtained as a light yellow foam. MS m/e: 566.5 [M]+.

Example 34 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-trifluoromethyl-pyridin-3-yl ester ci N F
cl 0 N-~ F

N

N

In analogy to the procedure described for the synthesis of example 25, the title compound rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-trifluoromethyl-pyridin-3-yl ester was prepared from rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone using 6-(trifluoromethyl)pyridin-3-ol instead of 2-cyclopropylethanol and was obtained as a light brown oil. MS m/e: 627.2 [M]+.

Example 35 {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-arbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester
-57-CI Chiral N-~

N

N

and Example 36 {(3 S,4R)-4-(3,4-Dichlo ro-phenyl)-1- [ 1-(1-methyl-cyclop ropanecarbonyl)-piperidine-4-arbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester CI Chiral N

N

N

rac-[(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-cyclopropyl-ethyl ester was subjected to column chromatography on chiral phase to yield [(3R,4S)-1 -(1-cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-cyclopropyl-ethyl ester (MS(m/e): 550.3 [M]+) as a light brown oil and [(3S,4R)-1-(1-cyclopropylmethyl-piperidi e-4-carbonyl)-4-(3,4-dick oro-phenyl)-pyrrolidi -3-yl]-methyl-carbamic acid 2-cyclopropyl-ethyl ester (MS(m/e): 550.3 [M]+) as a light brown oil.

Example 37 rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(trans-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester
-58-CII
:
F

N

"'OH

a) rac-[(3R,4S)-l-Benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester In analogy to the procedure described for the synthesis of example 2 (step b), the title compound rac-[(3R,4S)-l-Benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-[(3S,4R)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-amine instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone and was obtained as a colorless oil.
MS m/e: 473.1 [MH]+.

b) rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester In analogy to the procedure described for the synthesis of example 1 (step e), the title compound rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-[(3R,4S)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of rac-[(3R,4S)-1-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester and was obtained as a light brown foam.
MS m/e: 383.1 [M]+.

c) rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(trans-4-hydroxy-cyclohexanecarbonyl pyrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester In analogy to the procedure described for the synthesis of example 1 (step f), the title compound rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(trans-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-pyrro lidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester using trans-4-hydroxycyclohexanecarboxylic acid instead of 1 -(1 -methyl-cyclopropanecarbonyl)-piperidine-4-carboxylic acid and was obtained as a light brown oil. MS m/e: 509.3 [M]+.
-59-Example 38 {(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester a Chiral / \ \ o - F
N

N

and Example 39 {(3 S,4R)-4-(4-C hloro-phenyl)-1- [ 1-(1-methyl-cyclop ropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester CI Chiral N- \ F
\0 N

~Nr)~

rac-{(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester was subjected to column chromatography on chiral phase to yield {(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester (MS(m/e): 542.2 [M]+) as a white foam and {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester (MS(m/e): 542.2 [M]+) as a white foam.

Example 40 rac-{(3R,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester
-60-CI

CI 0 \ / F
Nom( N

NY N

a) rac-[(3R,4R -l-Benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yll-methyl-amine In analogy to the procedure described for the synthesis of example 1 (step c), the title compound rac-[(3R,4R)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-amine was prepared from rac-(3R,4R)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-ylamine instead of rac-(3S,4R)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-ylamine and was obtained as a light brown oil. MS m/e: 335.2 [M]+.

b) rac-[(3R,4R -l-Benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid tert-butyl ester In analogy to the procedure described for the synthesis of example 1 (step d), the title compound rac-[(3R,4R)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester was prepared from rac-[(3R,4R)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-amine instead of rac-[(3R,4S)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-amine and was obtained as a light brown oil. MS m/e: 435.2 [M]+.

c) rac-[(3R,4R)-4-(3,4-Dichloro-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid tert-butyl ester In analogy to the procedure described for the synthesis of example 1 (step e), the title compound rac-[(3R,4R)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester was prepared from of rac-[(3R,4R)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester instead of rac-[(3R,4S)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester and was obtained as a brown oil. MS m/e:
345.1 [M]+.

d) rac-{(3R,4R)-4-(3,4-Dichloro-phenyl [I-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyll-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester In analogy to the procedure described for the synthesis of example 1 (step f), the title compound rac- {(3R,4R)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester was prepared from rac-
-61-[(3R,4RS)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester instead of rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester and was obtained as a brown oil. MS m/e: 538.3 [M]+.
e) rac-{4-[(3R,4R)-3-(3,4-Dichloro-phenyl -4-methylamino-pyrrolidine-l-carbonyll-piperidin-l-yll -(1-methyl-cyclopropyl)-methanone In analogy to the procedure described for the synthesis of example 2 (step a), the title compound rac- {4-[(3R,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin- l -yl}-(1-methyl-cyclopropyl)-methanone was prepared from rac-{(3R,4R)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -methyl-carbamic acid tert-butyl ester instead of rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester and was obtained as a brown oil. MS m/e: 438.2 [M]+.

f) rac-{(3R,4R)-4-(3,4-Dichloro-phenyl)-I-[I-(l-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyll-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester In analogy to the procedure described for the synthesis of example 2 (step b), the title compound rac- {(3R,4R)-4-(3,4-dichloro-phenyl)-1-[1 -(1 -methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-{4-[(3R,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin- l -yl} -(1-methyl-cyclopropyl)-methanone instead of rac- {4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone and was obtained as a brown oil. MS m/e: 576.3 [M+H]+.

Example 41 {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-chloro-pyridin-3-yl ester CI Chiral CI / \ 0 N
N_ CI

N

N

and
-62-Example 42 {(3 S,4R)-4-(3,4-Dichlo ro-phenyl)-1- [ 1-(1-methyl-cyclop ropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-chloro-pyridin-3-yl ester CI Chiral _~ CI
0 \ /
CI \N

N

N

rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-chloro-pyridin-3-yl ester was subjected to column chromatography on chiral phase to yield {(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-chloro-pyridin-3-yl ester (MS(m/e): 593.2 [M]+) as an off-white foam and {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-chloro-pyridin-3-yl ester (MS(m/e): 593.2 [M]+) as an off-white foam.

Example 43 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-carbamic acid 4-fluoro-phenyl ester CI
CI H 0 \ / F
j-~ 0 N

N`

a) rac-[(3R,4S)-l-Benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yll-carbamic acid tert-butyl ester To a solution of rac-(3S,4R)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-ylamine (30.64 g, 0.095 mol) in dichloromethane (300 mL) was added N,N-diisopropyl ethyl amine (32.65 mL, 0.191 mol) and 4-dimethylaminopyridine (1.17 g, 0.010 mol). The reaction mixture was cooled to 0 C and di-tert.-butyl-dicarbonate (24.98 g; 0.114 mol) was added in 2 portions. After stirring 2 h at this temperature the solution was stirred at ambient temperature for 18 h. The resulting
-63-mixture was concentrated and purification by chromatography (Si02, heptane:ethyl acetate =
75:25) afforded the title compound (5.82 g, 14%) as a light yellow solid. MS
m/e: 421.1 [M]+.
b) rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-pyrrolidin-3-yll-carbamic acid tert-butyl ester In analogy to the procedure described for the synthesis of example 1 (step e), the title compound rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-carbamic acid tert-butyl ester was prepared from rac-[(3R,4S)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-carbamic acid tert-butyl ester instead of rac-[(3R,4S)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester and was obtained as a light brown solid.
MS m/e: 331.1 [M+H]+.

c) rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-I-[I-(l-methyl-cyclopropanecarbonyl piperidine-4-carbonyll-pyrrolidin-3-yl}-carbamic acid tert-butyl ester In analogy to the procedure described for the synthesis of example 1 (step f), the title compound rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1 -(1 -methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-carbamic acid tert-butyl ester was prepared from rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-carbamic acid tert-butyl ester instead of rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester and was obtained as a light brown foam. MS m/e: 524.1 [M]+.

d) rac-{4-[(3R,4S)-3-Amino -4-(3,4-dichloro-phenyl)-pyrrolidine-l-carbonyll-piperidin-l-yll -(l-methyl-cyclopropyl)-methanone In analogy to the procedure described for the synthesis of example 2 (step a), the title compound rac- {4-[(3R,4S)-3-Amino -4-(3,4-dichloro-phenyl)-pyrrolidine- l -carbonyl]-piperidin- l -yl} -(1-methyl-cyclopropyl)-methanone was prepared from rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-carbamic acid tert-butyl ester instead of rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester and was obtained as a light brown foam. MS m/e: 424.2 [M+H]+.

e) rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-I-[I-(l-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyll-pyrrolidin-3-yl}-carbamic acid 4-fluoro-phenyl ester In analogy to the procedure described for the synthesis of example 2 (step b), the title compound rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-carbamic acid 4-fluoro-phenyl ester was prepared from rac-{4-
-64-[(3 R,4 S)-3 -Amino -4-(3,4-dichloro -phenyl)-pyrro lidine- l -carbonyl]-piperidin- l -yl} -(1-methyl-cyclopropyl)-methanone instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone and was obtained as a light yellow foam. MS m/e: 562.0 [M]+.

Example 44 rac- [(3R,4 S)-4-(3,4-Dichloro-phenyl)-1-(tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester ci cl N 0 F

to a) rac- 3R,4S, -l-Benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester In analogy to the procedure described for the synthesis of example 2 (step b), the title compound rac-(3R,4S)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-[(3S,4R)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-amine instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone and was obtained as a colorless oil.
MS m/e: 473.1 [M]+.

b) rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester In analogy to the procedure described for the synthesis of example 1 (step e), the title compound rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-(3R,4S)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of rac-[(3R,4S)-1-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester and was obtained as a light brown foam.
MS m/e: 383.1 [M]+.
-65-c) rac-[(3R,4S)4-(3,4-Dichloro-phenyl)-1-(tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester To a solution of tetrahydropyran-4-yl-carboxylic acid (51 mg, 0.39 mmol) in DMF (lmL) was added ambient temperature 2-(1H-benzotriazole-l-yl)-1,1,3,3-tetramethyluronium tetrafluoroborate (114 mg, 0.36 mmol) and N,N-diisopropyl ethyl amine(l25 mg, 0.97 mmol).
After stirring for 15 min at this temperature a solution of rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (124 mg, 0.32 mol) in DMF (1 mL) was added and stirred for 20 h at ambient temperature. The reaction mixture was diluted with ethyl acetate (l OmL) and washed with aqueous sodium carbonate (1 M, 10 mL), water (l OmL) and brine (1 OmL). The aqueous layers were extracted with ethyl acetate (10 mL) and the combined organic layers were dried over sodium sulfate and concentrated.
Purification by chromatography (Si02, ethyl acetate:methanol = 98:2 to 85:15) afforded the title compound (92 mg, 57 %) as a white oil. MS m/e: 495.3 [M]+.

Example 45 [(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(trans-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester CI Chiral CI N-~0 F

N

OH

and Example 46 [(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-(trans-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester
-66-CI Chiral CI _ \N 0\`
F

N

OH

rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(trans-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was subjected to column chromatography on chiral phase to yield [(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(trans-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (MS(m/e):
509.3 [M]+) as an off-white foam and [(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-(trans-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (MS(m/e):
509.3 [M]+) as an off-white foam.

Example 47 rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(cis-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester CIcI
F

N

OH

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-1-( cis-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of rac- {4-[(3 S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin- l -yl}-(1-methyl-cyclopropyl)-methanone using cis-4-hydroxycyclohexanecarboxylic acid instead of 1-methylcyclopropane-1-carboxylic acid and was obtained as a an off-white foam. MS m/e:
509.2 [M]+.
-67-Example 48 rac- [(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(morpholine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester cl a F

0" N

In analogy to the procedure described for the synthesis of example 2 (step b), the title compound rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-1-(morpholine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin-1-yl} -(1-methyl-cyclopropyl)-methanone using morpholin-4-carbonyl chloride instead of fluorophenyl chloroformate and was obtained as a colorless oil. MS m/e: 496.2 [M]+.

Example 49 rac- [(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(cis-4-methoxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester CI N-~0 F

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-1-( cis-4-methoxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone using cis-4-methoxycyclohexanecarboxylic acid instead
-68-of 1-methylcyclopropane-1-carboxylic acid and was obtained as a light yellow oil. MS m/e:
523.4 [M]+.

Example 50 [(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester CI Chiral N

O

and Example 51 [(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-(tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester CI Chiral N

rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was subjected to column chromatography on chiral phase to yield [(3R,4S)-4-(3,4-dichloro-phenyl)-1-(tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (MS(m/e): 495.2 [M]+) as an off-white foam and [(3S,4R)-4-(3,4-dichloro-phenyl)-1-(tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (MS(m/e): 495.2 [M]+) as an off-white foam.

Example 52 rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(trans-4-hydroxy-4-methyl-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester
-69-CII
:
F

,OH

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-1-( trans-4-hydroxy-4-methyl-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone using trans-4-hydroxy-4-methyl-cyclohexanecarboxylic acid instead of 1-methylcyclopropane-1-carboxylic acid and was obtained as an off-white foam. MS m/e: 523.3 [M]+.

Example 53 rac- [(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(cis-4-hydroxy-4-methyl-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester CIcl F

N

OH

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-1-(ciss-4-hydroxy-4-methyl-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone using cis-4-hydroxy-4-methyl-cyclohexanecarboxylic acid instead of 1-methylcyclopropane-1-carboxylic acid and was obtained as an off-white foam. MS m/e: 523.3 [M]+.
-70-Example 54 rac-{(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester In analogy to the procedure described for the synthesis of example 25, the title compound rac-{(3R,4S)-4-(4-Chloro-phenyl)-1-[1 -(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester was prepared from rac-{4-[(3 S,4R)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin- l -yl} -(1-methyl-cyclopropyl)-methanone instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone and was obtained as an off-white foam. MS m/e: 516.3 [M]+.

Example 55 rac- [(3R,4S)-1-(3-Carbamoyl-propionyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester F
CI t/
CID cz \N
O
C

N

O
O

NHz In analogy to the procedure described for the synthesis of example 44 (step c), the title compound rac-[(3R,4S)-1-(3-carbamoyl-propionyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-pyrro lidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin-1-yl} -(1-methyl-cyclopropyl)-methanone using succinamic acid instead of 1-methylcyclopropane-1-carboxylic acid and was obtained as a colorless oil. MS m/e: 465.1 [M]+.

Example 56 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1- [3-(2-oxo-pyrrolidin-1-yl)-propionyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester
-71-F

CI \ /
N
O

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound rac- {(3R,4S)-4-(3,4-dichloro-phenyl)-1-[3-(2-oxo-pyrrolidin-l -yl)-propionyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of rac- {4-[(3 S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin- l -yl}-(1-methyl-cyclopropyl)-methanone using 3-(2-oxo-pyrrolidin-1-yl)-propionic acid instead of 1-methylcyclopropane-l-carboxylic acid and was obtained as a colorless oil. MS
m/e: 522.2 [M]+.

Example 57 rac-{(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-methyl-cyclohexyl ester ci N
O
N`

O

In analogy to the procedure described for the synthesis of example 25, the title compound rac-{(3R,4S)-4-(4-chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-methyl-cyclohexyl ester was prepared from rac-{4-[(3 S,4R)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin- l -yl} -(1-methyl-cyclopropyl)-methanone instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone using trans-4-methylcyclohexanol instead of 2-cyclopropylethanol and was obtained as an off-white foam. MS
m/e: 544.3 [M]+.
-72-Example 58 rac-1-{(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-3-(2-cyclopropyl-ethyl)-1-methyl-urea C

\ \ om./ V
N-~ N
O
N

O

O

In analogy to the procedure described for the synthesis of example 25, the title compound rac-1-{(3R,4S)-4-(4-chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-3-(2-cyclopropyl-ethyl)-l-methyl-urea was prepared from rac-{4-[(3S,4R)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin-1-yl} -(1-methyl-cyclopropyl)-methanone instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone using 2-cyclopropyl ethyl amine instead of 2-cyclopropylethanol and was obtained as an off-white foam. MS m/e:
515.4 [M]+.
Example 59 [(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(cis-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester CI Chiral CI _ N-~0 F

N

OH

and Example 60 [(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-(cis-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester
-73-CI Chiral CI -~0 F

N

OH

rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(cis-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was subjected to column chromatography on chiral phase to yield [(3R,4S)-4-(3,4-dichloro-phenyl)-1-(cis-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (MS(m/e): 509.3 [M]+) as an off-white foam and [(3 S,4R)-4-(3,4-dichloro-phenyl)-1-(cis-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (MS(m/e): 509.3 [M]+) as an off-white foam.

Example 61 {(3R,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester Cl Chiral CI/ \ \ 0 \ / F
N

N

and Example 62 {(3 S,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester
-74-CI Chiral CI / \ N 0 \ / F

N

rac- {(3R,4R)-4-(3,4-Dichloro-phenyl)-1-El -(1 -methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester was subjected to column chromatography on chiral phase to yield {(3R,4R)-4-(3,4-dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester (MS(m/e): 576.2 [M]+) as a light brown oil and {(3S,4S)-4-(3,4-dichloro-phenyl)-l-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -methyl-carbamic acid 4-fluoro-phenyl ester (MS(m/e): 576.2 [M]+) as a light brown oil.

Example 63 rac-{(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester Cl Chiral N-~

N

N`

and Example 64 rac-{(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester
-75-CI Chiral \ al ~
N-~ p N

N`

rac- {(3R,4S)-4-(4-Chloro-phenyl)-1-El -(1 -methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester was subjected to column chromatography on chiral phase to yield {(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester (MS(m/e): 516.3 [M]+) as an off-white foam and {(3S,4R)-4-(4-Chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -methyl-carbamic acid 2-cyclopropyl-ethyl ester (MS(m/e): 516.3 [M]+) as an off-white foam.

Example 65 rac-[(3R,4S)-1-(1-Acetyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester F

Z:::~
CI ~ '=~ O
N
O

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound rac-[(3R,4S)-1-(1-acetyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-pyrro lidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using 1-acetylpiperidine-4-carboxylic acid instead of 1-methylcyclopropane-1-carboxylic acid and was obtained as a brown oil. MS m/e: 536.1 [M]+.

Example 66 rac-4-{(3 S,4R)-3-(3,4-Dichloro-phenyl)-4-[(4-fluoro-phenoxycarbonyl)-methyl-amino]-pyrrolidine-1-carbonyl}-piperidine-l-carboxylic acid tert-butyl ester
-76-CI

CI i\ N-c F

N

0-~N

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound rac-4- {(3 S,4R)-3-(3,4-dichloro-phenyl)-4-[(4-fluoro-phenoxycarbonyl)-methyl-amino] -pyrrolidine-l-carbonyl }-piperidine-l-carboxylic acid tert-butyl ester was prepared from rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using piperidine-1,4-dicarboxylic acid mono-tert-butyl ester instead of methylcyclopropane-l-carboxylic acid and was obtained as a yellow foam. MS
m/e: 593.1 [M]+.

Example 67 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester F F
F
CI / O
N~\(\
O
N

O
N

O

In analogy to the procedure described for the synthesis of example 25, the title compound rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1 -(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester was prepared from rac-{4-[(3 S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin- l -yl} -(1-methyl-cyclopropyl)-methanone using 4,4,4-trifluorobutanol instead of 2-cyclopropylethanol and was obtained as an off-white foam. MS m/e: 592.3 [M]+.
-77-Example 68 {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (1R,2S,4S)-bicyclo[2.2.1]hept-2-yl ester and {(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (1R,2S,4S)-bicyclo[2.2.1]hept-2-yl ester cl / \
Cl H
N~1\/\
O
O
N

In analogy to the procedure described for the synthesis of example 25, the title compounds {(3R,4S)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (1R,2S,4S)-bicyclo[2.2.1]hept-2-yl ester and {(3S,4R)-4-(3,4-dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (1R,2S,4S)-bicyclo[2.2.1]hept-2-yl ester were prepared from rac-{4-[(3 S,4R)-3 -(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl] -piperidin-1-yl} -(1-methyl-cyclopropyl)-methanone using endo-norborneo1 instead of 2-cyclopropylethano1 and were obtained as an off-white foam. MS m/e: 576.3 [M]+.

Example 69 {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (1R,2R,4S)-bicyclo[2.2.1]hept-2-yl ester and {(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (1R,2R,4S)-bicyclo[2.2.1]hept-2-yl ester O

CI / \ \ 0,,. ~-H
- N~
O
N

O
N

~0
-78-In analogy to the procedure described for the synthesis of example 25, the title compounds {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (1R,2R,4S)-bicyclo[2.2.1]hept-2-yl ester and {(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (1R,2R,4S)-bicyclo[2.2.1]hept-2-yl ester were prepared from rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone using exo-norborneo1 instead of 2-cyclopropylethanol and were obtained as an off-white foam. MS m/e: 576.3 [M]+.

Example 70 rac-{(3R,4S)-4-(3-Chloro-4-methyl-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester CI N F
O
N

O

O

a) rac- 3S,4R -l-Benzyl-3-(3-chloro-4-methyl-phenyl -4-nitro-pyrrolidine In analogy to the procedure described for the synthesis of example 1 (step a), the title compound rac-(3S,4R)-l-benzyl-3-(3-chloro-4-methyl-phenyl)-4-nitro-pyrrolidine was prepared from 2-chloro-1-methyl-4-((E)-2-nitro-vinyl)-benzene instead of 1,2-dichloro -4-((E)-2-nitro -vinyl)-benzene and was obtained as a light green oil. MS m/e: 331.1 [M]+.

b) rac- 3R,4S, -l-Benzyl-4-(3-chloro-4-methyl-phenyl)-pyrrolidin-3-ylamine In analogy to the procedure described for the synthesis of example 1 (step b), the title compound rac-(3R,4S)-l-benzyl-4-(3-chloro-4-methyl-phenyl)-pyrrolidin-3-ylamine was prepared from rac-(3S,4R)-l-benzyl-3-(3-chloro-4-methyl-phenyl)-4-nitro-pyrrolidine instead of rac-(3R,4S)-1-Benzyl-3-(3,4-dichloro-phenyl)-4-nitro-pyrrolidine and was obtained as a light brown oil. MS
m/e: 301.2 [M+H]+.

c) rac-[(3R,4S)-l-Benzyl-4-(3-chloro-4-methyl-phenyl)-pyrrolidin-3-yll-methyl-amine In analogy to the procedure described for the synthesis of example 1 (step c), the title compound rac-[(3R,4S)-l-benzyl-4-(3-chloro-4-methyl-phenyl)-pyrrolidin-3-yl]-methyl-amine was prepared from rac-(3R,4S)-l-benzyl-4-(3-chloro-4-methyl-phenyl)-pyrrolidin-3-ylamine instead
-79-of rac-(3S,4R)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-ylamine and was obtained as a colorless oil. MS m/e: 315.1 [M+H]+.

d) rac-[(3R,4S)-l-Benzyl3-chloro-4-methyl-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid tert-butyl ester In analogy to the procedure described for the synthesis of example 1 (step d), the title compound rac-[(3R,4S)-l-benzyl-4-(3-chloro-4-methyl-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester was prepared from rac-[(3R,4S)-l-benzyl-4-(3-chloro-4-methyl-phenyl)-pyrrolidin-3-yl]-methyl-amine instead of rac-[(3R,4S)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-amine and was obtained as a light yellow oil. MS m/e: 415.3 [M+H]+.

e) rac-[(3R,4S)-4-(3-Chloro-4-methyl-phenyl pyrrolidin-3-yll-methyl-carbamic acid tert-butyl ester In analogy to the procedure described for the synthesis of example 1 (step e), the title compound rac-[(3R,4S)-4-(3-chloro-4-methyl-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester was prepared from rac-[(3R,4S)-l-benzyl-4-(3-chloro-4-methyl-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester instead of rac-[(3R,4S)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester and was obtained as a brown foam. MS
m/e: 271.3 [M+-tBu+H]+.

f) rac-{(3R,4S)-4-(3-Chloro-4-methyl-phenyl)-I-[I-(l-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyll-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester In analogy to the procedure described for the synthesis of example 1 (step f), the title compound rac- {(3R,4S)-4-(3-chloro-4-methyl-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester was prepared from rac-[(3R,4S)-4-(3-chloro-4-methyl-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester instead of rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester and was obtained as a yellow oil. MS m/e: 518.3 [M]+.

g) rac-{4-[(3S,4R)-3-(3-Chloro-4-methyl-phenyl -4-methylamino-pyrrolidine-l-carbonyll-piperidin- l -ylll-methyl-cyclopropyl)-methanone In analogy to the procedure described for the synthesis of example 2 (step a), the title compound rac- {4-[(3 S,4R)-3-(3-chloro-4-methyl-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone was prepared from rac-{(3R,4S)-4-(3-chloro-4-methylphenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -
-80-methyl-carbamic acid tert-butyl ester instead of rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester and was obtained as a light brown oil. MS m/e: 418.4 [M+H]+.

h) rac-{(3R,4S)-4-(3-Chloro-4-methyl-phenyl [mil-methyl-cyclopropanecarbonyl) piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester In analogy to the procedure described for the synthesis of example 2 (step b), the title compound rac- {(3R,4S)-4-(3-chloro-4-methyl-phenyl)-1-[1 -(1 -methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-{4-[(3 S,4R)-3-(3-chloro-4-methyl-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin- l -yl}-(1-methyl-cyclopropyl)-methanone instead of rac- {4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone and was obtained as an off-white foam. MS m/e: 566.2 [M]+.

Example 71 rac-{(3R,4S)-4-(4-Chloro-3-methyl-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester ci O
N

O
N

O

a) rac- 3S,4R -l-Benzyl-3-(4-chloro-3-methyl-phenyl -4-nitro-pyrrolidine In analogy to the procedure described for the synthesis of example 1 (step a), the title compound rac-(3S,4R)-l-benzyl-3-(4-chloro-3-methyl-phenyl)-4-nitro-pyrrolidine was prepared from 1-chloro-2-methyl-4-((E)-2-nitro-vinyl)-benzene instead of 1,2-dichloro -4-((E)-2-nitro -vinyl)-benzene and was obtained as a light green oil. MS m/e: 331.1 [M]+.

b) rac- 3R,4S, -l-Benzyl-4-(4-chloro-3-methyl-phenyl)-pyrrolidin-3-ylamine In analogy to the procedure described for the synthesis of example 1 (step b), the title compound rac-(3R,4S)-l-benzyl-4-(4-chloro-3-methyl-phenyl)-pyrrolidin-3-ylamine was prepared from rac-(3S,4R)-l-benzyl-3-(4-chloro-3-methyl-phenyl)-4-nitro-pyrrolidine instead of rac-(3R,4S)-
-81-1-Benzyl-3-(3,4-dichloro-phenyl)-4-nitro-pyrrolidine and was obtained as a dark brown oil. MS
m/e: 301.2 [M+H]+.

c) rac-[(3R,4S)-l-Benzyl-4-(4-chloro-3-methyl-phenyl)-pyrrolidin-3-yll-methyl-amine In analogy to the procedure described for the synthesis of example 1 (step c), the title compound rac-[(3R,4S)-l-benzyl-4-(4-chloro-3-methyl-phenyl)-pyrrolidin-3-yl]-methyl-amine was prepared from rac-(3R,4S)-l-benzyl-4-(4-chloro-3-methyl-phenyl)-pyrrolidin-3-ylamine instead of rac-(3S,4R)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-ylamine and was obtained as a light yellow oil. MS m/e: 315.1 [M+H]+.

d) rac-[(3R,4S)-l-Benzyl-4-(4-chloro-3-methyl-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid tert-butyl ester In analogy to the procedure described for the synthesis of example 1 (step d), the title compound rac-[(3R,4S)-l-benzyl-4-(4-chloro-3-methyl-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester was prepared from rac-[(3R,4S)-l-benzyl-4-(4-chloro-3-methyl-phenyl)-pyrrolidin-3-yl]-methyl-amine instead of rac-[(3R,4S)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-amine and was obtained as a light yellow oil. MS m/e: 415.3 [M+H]+.

e) rac-[(3R,4S)-4-(4-Chloro-3-methyl-phenyl pyrrolidin-3-yll-methyl-carbamic acid tert-butyl ester In analogy to the procedure described for the synthesis of example 1 (step e), the title compound rac-[(3R,4S)-4-(4-chloro-3-methyl-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester was prepared from rac-[(3R,4S)-l-benzyl-4-(4-chloro-3-methyl-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester instead of rac-[(3R,4S)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester and was obtained as a brown oil. MS m/e:
271.3 [M+-tBu+H]+.

f) rac-{(3R,4S)-4-(4-Chloro-3-methyl-phenyl)-I-[I-(l-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester In analogy to the procedure described for the synthesis of example 1 (step f), the title compound rac- {(3R,4S)-4-(4-chloro-3-methyl-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester was prepared from rac-[(3R,4S)-4-(4-chloro-3-methyl-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester instead of rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester and was obtained as a yellow oil. MS m/e: 518.4 [M]+.
-82-g) rac-{4-[(3S,4R)-3-(4-Chloro-3-methyl-phenyl -4-methylamino-pyrrolidine-1-carbonyll-piperidin- l -ylll-methyl-cyclopropyl)-methanone In analogy to the procedure described for the synthesis of example 2 (step a), the title compound rac- {4-[(3 S,4R)-3-(4-chloro-3-methyl-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone was prepared from rac-{(3R,4S)-4-(4-chloro-3-methylphenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -methyl-carbamic acid tert-butyl ester instead of rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester and was obtained as a light yellow oil. MS m/e: 418.2 [M+H]+.

h) rac-{(3R,4S)-4-(4-Chloro-3-methyl-phenyl [mil-methyl-cyclopropanecarbonyl) piperidine-4-carbonyll-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester In analogy to the procedure described for the synthesis of example 2 (step b), the title compound rac- {(3R,4S)-4-(4-chloro-3-methyl-phenyl)-1-[1 -(1 -methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-{4-[(3S,4R)-3-(4-chloro-3-methyl-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone instead of rac- {4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone and was obtained as an off-white foam. MS m/e: 566.2 [M]+.

Example 72 rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester CI N ~ - F
N
i O
NH

In analogy to the procedure described for the synthesis of example 2 (step a), the title compound rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-4- {(3S,4R)-3-(3,4-dichloro-phenyl)-4-[(4-fluoro-phenoxycarbonyl)-methyl-amino]-pyrrolidine- l -carbonyl} -piperidine- l -carboxylic acid tert-butyl ester instead of rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1-(1-methyl-
-83-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester and was obtained as a light yellow foam. MS m/e: 494.2 [M]+.

Example 73 rac- [(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(1-propionyl-piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester CI
ci~ 0- F
N

O
N I~\
O

To a solution of rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (200 mg, 0.41 mmol) in THE (2 mL) was added N,N-diisopropyl ethyl amine (208 l, 1.21 mmol). After stirring for a period of 5 min propionyl chloride (53 l, 0.61 mmol) was added. After stirring for 3h at ambient temperature the reaction mixture was treated with an aqueous solution of sodium carbonate (1 M, 10 mL).
The organic layer was separeted and washed with brine (1 OmL) and the aqueous layers were extracted with ethyl acetate (20mL). The combined organic layers were dried over sodium sulfate and concentrated. Purification by chromatography (Si02, ethyl acetate:methanol =
100:0 to 80:20) afforded the title compound (88 mg, 40%) as a white solid. MS m/e: 550.3 [M]+.

Example 74 rac-[(3R,4S)-1-(1-Cyclopropanecarbonyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester CI
CI F
N
i O N
/\

In analogy to the procedure described for the synthesis of example 73, the title compound rac-[(3R,4S)-1-(1-cyclopropanecarbonyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-
-84-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using cylclopropanecarbonyl chloride instead of propionyl chloride and was obtained as a white foam. MS m/e: 562.1 [M]+.

Example 75 rac- {(3R,4 S)-4-(3,4-Dichloro-phenyl)-1- [ 1-(2-methoxy-acetyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester CI
CI N--/ -F
N
i O
N Oi O

In analogy to the procedure described for the synthesis of example 73, the title compound rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1-(2-methoxy-acetyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using methoxyacetyl chloride instead of propionyl chloride and was obtained as a white foam. MS m/e: 566.3 [M]+.

Example 76 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1- [ 1-(tetrahydro-pyran-4-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester CI
CI _ N--/ -F
N

O'O
N

In analogy to the procedure described for the synthesis of example 73, the title compound rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1-(tetrahydro-pyran-4-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-
-85-phenyl ester using tetrahydro-2H-pyran-4-carbonyl chloride instead of propionyl chloride and was obtained as a white foam. MS m/e: 606.3 [M]+.

Example 77 rac-{(3R,4 S)-4-(3,4-Dichloro-phenyl)-1- [ 1-(tetrahydro-pyran-4-yl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester CI

o CI F
O
N

O
`
O
In analogy to the procedure described for the synthesis of example 44 (step c), the title compound rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(tetrahydro-pyran-4-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using 1-(tetrahydro-pyran-4-yl)-piperidine-4-carboxylic acid instead of 1-methylcyclopropane-1-carboxylic acid and was obtained as an off-white foam. MS m/e:
578.2 [M]+.

Example 78 rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(1-[1,3,4] thiadiazol-2-yl-piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester CI

~
CI / _ N__~o\ / F

O
N

O
' S
NNE
To a solution of rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (100 mg, 0.20 mmol) in N-methylpyrrolidinone (1 mL) was added 2-bromo-1,3,4-thiadiazole (50 mg, 0.30 mmol) and N,N-diisopropyl ethyl amine (69 l, 0.40 mmol). The solution was irradiated in the microwave for 35 min at 150 C.
86 PCT/EP2010/069434 The reaction mixture was diluted with ethyl acetate (15 mL) and washed with an aqueous solution of sodium carbonate (1 M, 15 mL). The organic layer was separeted and washed with brine (15 mL) and the aqueous layers were extracted with ethyl acetate (20 mL). The combined organic layers were dried over sodium sulfate and concentrated. Purification by chromatography (Si02, ethyl acetate:methanol = 100:0 to 80:20) afforded the title compound (37 mg, 32%) as an off-white foam. MS m/e: 578.1 [M]+.

Example 79 rac- [(3R,4 S)-1- [ 1-(6-Chloro-pyridazin-3-yl)-piperidine-4-carbonyl] -4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester cl CI / \ O
O
N

N N
CI

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound rac-[(3R,4S)-1-[1-(6-Chloro-pyridazin-3-yl)-piperidine-4-carbonyl]-4-(3,4-dichloro-phenyl)-pyrro lidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using 1-(6-chloro-3-pyridazinyl)-4-piperidinecarboxylic acid instead of 1-methylcyclopropane-l-carboxylic acid and was obtained as an off-white foam. MS m/e: 608.1 [M+H]+.

Example 80 rac- [(3R,4S)-1-(5'-Cyano-3,4,5,6-tetrahydro-2H- [ 1,2'] bipyridinyl-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester cI
CI
F
O

N
O
N N
-87-A solution of [(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (50 mg, 0.10 mmol), 6-chloronicotinonitrile (21 mg, 0.15 mmol) in N-methylpyrrolidinone (0.5 mL) was treated with N,N-diisopropyl ethyl amine (52 l, 0.30 mmol). The solution was stirred for 6 h at ambient temperature before it was diluted with ethyl acetate (15 mL) and washed with an aqueous solution of sodium carbonate (1 M, 15 mL). The organic layer was separeted and washed with brine (15 mL) and the aqueous layers were extracted with ethyl acetate (20 mL). The combined organic layers were dried over sodium sulfate and concentrated. Purification by chromatography (Si02, heptane:ethyl acetate:methanol = 80:20:0 to 0:90:10) afforded the title compound (52 mg, 86%) as an off-white foam. MS m/e:
596.2 [M]+.

Example 81 {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester F F
F
CI / O
N~\(\
O
N

O
N

O

and Example 82 {(3 S,4R)-4-(3,4-Dichlo ro-phenyl)-1- [ 1-(1-methyl-cyclop ropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester F
CI

CI
N~\(\
O
N

O
N
-88-rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester was subjected to column chromatography on chiral phase to yield {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester (MS(m/e): 592.3 [M]+) as an off-white foam and {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester (MS(m/e): 592.3 [M]+) as an off-white foam.

Example 83 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3,4,4,4-pentafluoro-butyl ester F F
CI
O F
CI N F F
O
N

O
N

O

In analogy to the procedure described for the synthesis of example 25, the title compound rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1 -(1 -methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 3,3,4,4,4-pentafluoro-butyl ester was prepared from rac-{4-[(3 S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin- l -yl} -(1-methyl-cyclopropyl)-methanone using 3,3,4,4,4-pentafluorobutan-l-ol instead of cyclopropylethanol and was obtained as a white foam. MS m/e: 628.2 [M]+.

Example 84 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (S)-1-(tetrahydro-furan-2-yl)methyl ester and rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (R)-1-(tetrahydro-furan-2-yl)methyl ester
-89-cb \
o CI N~
O
N

O
N

O

In analogy to the procedure described for the synthesis of example 25, the title compounds rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (S)-1-(tetrahydro-furan-2-yl)methyl ester and rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -methyl-carbamic acid (R)-1-(tetrahydro-furan-2-yl)methyl ester were prepared from rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone using rac-tetrahydro-3-furanmethanol instead of 2-cyclopropylethanol and was obtained as an off-white foam. MS m/e: 566.2 [M]+.

Example 85 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (S)-1-(tetrahydro-furan-3-yl)methyl ester and rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (R)-1-(tetrahydro-furan-3-yl)methyl ester O
CI

CI Nom( O
N

O
N

O

In analogy to the procedure described for the synthesis of example 25, the title compounds rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (S)-1-(tetrahydro-furan-3-yl)methyl ester and rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (R)-1-(tetrahydro-furan-3-yl)methyl ester were prepared from rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-
-90-1-yl}-(1-methyl-cyclopropyl)-methanone using rac-tetrahydrofurfuryl alcohol instead of 2-cyclopropylethanol and was obtained as a white foam. MS m/e: 566.2 [M]+.

Example 86 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3,3-trifluoro-propyl ester CI F
CI / \ \ 0-/-x F F
N_~

O
N

O
N

O

and Example 87 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3,3-trifluoro-propyl ester CI ~~F

CI / \ \ O-/' F F
N
O
N

O
N

O

rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3,3-trifluoro-propyl ester was subjected to column chromatography on chiral phase to yield {(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3,3-trifluoro-propyl ester (MS(m/e): 578.3 [M]+) as an off-white foam and {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3,3-trifluoro-propyl ester (MS(m/e): 578.3 [M]+) as an off-white foam.
-91-Example 88 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,5,5,5-pentafluoro-pentyl ester F
F FF
CI
/ \ O F
Cl N

O
N

N

In analogy to the procedure described for the synthesis of example 25, the title compound rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,5,5,5-pentafluoro-pentyl ester was prepared from rac-{4-[(3 S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin- l -yl} -(1-methyl-cyclopropyl)-methanone using 4,4,5,5,5-pentafluoropentanol instead of 2-cyclopropylethanol and was obtained as an off-white foam. MS m/e: 642.2 [M]+.
Example 89 [(3 S,4R)-4-(4-C hloro-phenyl)-1-(4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester CI

O

N
O

"OH
a) (4-Chloro-phenyl)-propynoic acid ethyl ester A mixture of 1-chloro-4-iodobenzene (120.4 g, 0.50 mol) and cesium carbonate (352.8 g, 1.0 mol) in tetrahydrofuran (1.275 L) was evaporated and flushed with argon. Then cuprous iodide (3.81 g, 20.0 mmol) and bis(triphenylphosphine)palladium(II) chloride (7.02 g, 10.0 mmol) were added and then ethyl propiolate (100 g, 1.01 mol) was added dropwise over a period of 20 min.
-92-The resulting dark brown suspension was stirred for 41 h at 35 C, then filtrated over Hyflo and washed with THE (5 L). The solution was concentrated and treated with toluene/heptane 1:2 (1.5 L) and stirred for 1 h at 45 C under reduced pressure (250 mbar). The resulting suspension was filtered and the residue was washed with further toluene/heptane 1:2 (1.5 L). The solid was dried affording 181.64 g (MS m/e: 209.0/211.2 [M+H]+) of a dark brown oil as crude product which was used without further purification.

b) 1-Benzyl-4-(4-chloro-phenyl -2,5-dihydro-lH-pyrrole-3-carboxylic acid To a solution of (4-chloro-phenyl)-propynoic acid ethyl ester (92.65 g, 444.1 mmol) in dichloromethane (425 mL) was added trifluoroacetic acid (3.4, 44.4 mmol). The reaction mixture was cooled with a water bath and a solution of N-(methoxymethyl)-N-(trimethylsilylmethyl)benzylamine (164.7 g, 666.1 mmol) in dichloromethane (325 mL) was added dropwise over a period of 1.5 h. It was stirred for 22 h at ambient temperature. Further N-(methoxymethyl)-N-(trimethylsilylmethyl)benzylamine (27.5 g, 111.0 mmol) in dichloromethane (50 mL) was added and stirring was continued for 2 h at ambient temperature.
The solvent was distilled off and the residue was taken up in dioxane (950 mL). After addition of water (475 mL) and sodium hydroxide (32%, 114.3 mL, 1.23 mol), it was stirred for 67 h at ambient temperature. After concentration the residue was dilluted with water (400 mL) and extracted with tert-butylmethylether (400 mL). The organic layers were washed with water (400 mL). The aqueous layers were combined, cooled to 5 C and set to pH=1.5 with aqueous HC1 (25 %, 172). After stirring for 1 h at 5 C, the solid was filtered off and was washed with water (1400 mL) and ethanol (400 mL). Drying (50 C, 25 mbar) afforded the title compound (109.85 g, 79%) as an off-white solid. MS m/e: 312.2/314.1 [M-H]-.

c) (3R,4R -l-Benzyl-4-(4-chloro-phenyl)-pyrrolidine-3-carboxylic acid An autoclave was charged under argon in a glove box (02 content < 2 ppm) with 1-benzyl-4-(4-chloro-phenyl)-2,5-dihydro-lH-pyrrole-3-carboxylic acid (1.00 g, 3.19 mmol), [Ru(OAc)2((S)-2-furyl-MeOBIPHEP)] (9.72 mg, 0.01 mmol) (2-furyl-MeOBIPHEP = (6,6'-dimethoxybiphenyl-2,2'-diyl)bis(di-2-furylphosphine) and methanol (30 ml). The asymmetric hydrogenation was run for 20 h at 30 C under 40 bar of hydrogen (>95 % conversion, determined by NMR). After the pressure was released, the grey suspension was evaporated to dryness to yield 1.01 g of the crude title compound. The crude product was dissolved in methanol (15 mL) and heated to reflux for 1 h. After cooling to ambient temperature it was stirred for 2 h at 0 C. The resulting suspension
-93-was filtered and dried (40 C, 15 mbar) for 2 h. affording the title compound (0.984 g, 95%, e.e.
99.8% R,R (chiral HPLC)) as white solid. MS m/e: 316.1 [M+H]+.

d) (3R,4R -l-Benzyl-4-(4-chloro-phenyl)pyrrolidine-3-carboxylic acid methyl ester To a white suspension of (3R,4R)-l-benzyl-4-(4-chloro-phenyl)-pyrrolidine-3-carboxylic acid (72.31 g, 229 mmol) in methanol (725 mL) was added slowly sulfuric acid (25.8 ml, 457.9 mmol). The resulting dark brown solution was stirred for 19 h at 60 C . After cooling to 0 C, tert-butylmethylether (1.6 L) was added and the solution was set to pH=9 with aqueous sodium carbonate (1M, 480 mL). The aqueous layer was separated and extracted with further tert-butylmethylether (410 mL). The organic layers were washed with brine (310 mL) and dried over sodium sulfate. Concentration afforded the title compound (74.18 g, 98%) as a light brown oil.
MS m/e: 330.3/332.3 [M+H]+.

e) (3S,4R -l-Benzyl-4-(4-chloro-phenyl)-pyrrolidine-3-carboxylic acid methyl ester To a solution of (3R,4R)-l-benzyl-4-(4-chloro-phenyl)-pyrrolidine-3-carboxylic acid methyl ester (72.74 g, 220.5 mmol) in methanol (730 mL) was added sodium methylate solution (5.4 M
methanol, 81.7 mL, 441.1 mmol). The reaction mixture was stirred for 116 h at ambient temperature (after 17.5 h further sodium methylate solution (5.4 M in methanol, 20.4 mL, 110.3 mmol) was added). It was set to pH=1 by addition of sulfuric acid (26.13 mL, 463.1 mmol) and stirred at 60 C for 19 h. The resulting suspension was cooled to 0 C, tert-butylmethylether (1.6 L) was added and the solution was set to pH=9 with aqueous sodium carbonate (1 M, 440 mL).
The aqueous layer was separated and extracted with further tert-butylmethylether (410 mL). The organic layers were washed with brine (310 mL), combined and dried over sodium sulfate.
Concentration and filtration over silicagel (heptane: ethyl acetate = 80:20) afforded the title compound (62.82g, 86%) as a light yellow oil. MS m/e: 330.3/332.3 [M+H]+.
f) (3S,4R -l-Benzyl-4-(4-chloro-phenyl)pyrrolidine-3-carboxylic acid amide A solution of (3S,4R)-l-benzyl-4-(4-chloro-phenyl)-pyrrolidine-3-carboxylic acid methyl ester (62.82 g, 190.5 mmol) and formamide (22.7 mL, 571.4 mmol) in DMF (75 mL) was heated to 100 C. Then sodium methylate solution (5.4 M in methanol, 17.6 mL, 95.2 mmol) was added dropwise over a period of 50 min. The solution was stirred for 3 h at 100 C
(after 1 h further formamide (11.4 mL, 285.7 mmol) was added). The reaction mixture was cooled to ambient temperature and the resulting suspension was separated between ethyl acetate (1500 mL) and water (1000 mL). The organic layers were washed with brine (500 mL), combined and dried
-94-over sodium sulfate. Concentration and trituration with tert-butylmethylether (500 mL) afforded the tittle compound (51.19 g, 85%) as white crystalls. MS m/e: 315.2 and 317.3 [M+H] +).

g) [(3S,4R -l-Benzyl-4-(4-chloro-phenyl)pyrrolidin-3-yll-carbamic acid methyl ester To a solution of potassium hydroxide (25.09 g, 447.2 mmol) in methanol (520 mL) was added a solution of (3S,4R)-l-benzyl-4-(4-chloro-phenyl)-pyrrolidine-3-carboxylic acid amide (51.19 g, 162.6 mmol) in THE (260 mL). After cooling to 0 C, diacetoxyiodosobenzene (57.61 g, 178.9 mmol) was added. The reaction mixture was stirred for 45 min at 0 C and for 1.5 h at ambient temperature and was then diluted with water (1000 mL). The mixture was separated between dichloromethane (1500 mL) and aqueous sodium carbonate (1M, 1000 mL). The organic layers were washed with brine (750 mL), combined and dried over sodium sulfate.
Concentration and trituration with tert-butylmethylether (180 mL) afforded the tittle compound (49.22 g, 88%) as a white solid. MS m/e: 345.3 and 347.2 [M+H] +).

h) [(3S,4R -l-Benzyl-4-(4-chloro-phenyl)pyrrolidin-3-yll-methyl-amine To a suspension of [(3S,4R)-l-benzyl-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-carbamic acid methyl ester (49.22 g, 142.7 mmol) in THE (520 mL) borane-tetrahydrofurane complex solution (1 M
in tetrahydrofurane, 571 mL, 571 mmol) was added slowly over a period of 25 min. The reaction mixture was stirred for 19 h at 60 C and then quenched with aqueous HC1(1N, 570 mL, dropwise over 60 min). The mixture was stirred for further 21 h at 60 C.
After cooling to ambient temperature, tetrahydrofurane was distilled away and the residue was separated between tert-butylmethylether (1500 mL) and aqueous HC1(1N, 1000 mL). The aqueous layer was set to pH=10 with aquoeus sodium carbonate (saturated, 2000 mL) and then extracted with tert-butylmethylether (twice 1500 mL). The organic layers were washed with brine (750 mL), combined and was dired over sodium sulfate. Concentration and filtration over silicagel (ethyl acetate:methanol, triethylamine = 90:5:5) afforded the title compound (34.38, 80%) as a light yellow liquid. MS m/e: 301.4/303.4 [M+H]+.

i) [(3S,4R -l-Benzyl-4-(4-chloro-phenyl)pyrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester In analogy to the procedure described for the synthesis of example 2 (step b), the title compound [(3S,4R)-l-benzyl-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from [(3S,4R)-l-benzyl-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-amine
-95-instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone using fluorophenyl chloroformate and was obtained as a light brown oil. MS m/e: 439.2 [M+H]+.

j) [(3S,4R)-4-(4-Chloro-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester In analogy to the procedure described for the synthesis of example 1 (step e), the title compound [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from [(3S,4R)-l-benzyl-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of of rac-[(3R,4S)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester and was obtained as a light brown oil.
MS m/e: 349.2 [M+H]+.

k) [(3S,4R)-4-(4-Chloro-phenyl)-1-(4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester In analogy to the procedure described for the synthesis of example 44 (step c), the title compound [(3S,4R)-4-(4-Chloro-phenyl)-1-(4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from[(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of rac-[(3S,4R)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using trans-4-hydroxycyclohexanecarboxylic acid instead of 1-methylcyclopropane-1-carboxylic acid and was obtained as an off-white foam. MS m/e: 475.2 [M+H]+.

Example 90 [(3 S,4R)-4-(4-C hloro-phenyl)-1-(tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester CI

O
;N F
O

N
O
O
-96-In analogy to the procedure described for the synthesis of example 44 (step c), the title compound [(3S,4R)-4-(4-chloro-phenyl)-1-(tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from[(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of rac-[(3S,4R)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using tetrahydropyran-4-yl-carboxylic acid instead of 1-methylcyclopropane-1-carboxylic acid and was obtained as an off-white foam. MS m/e: 461.2 [M+H]+.

Example 91 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 1-methyl-cyclopropylmethyl ester ci cl N
O
N

O
N

O

In analogy to the procedure described for the synthesis of example 25, the title compound rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 1-methyl-cyclopropylmethyl ester was prepared from rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone using 1-methylcyclopropanemethano1 instead of 2-cyclopropylethanol and was obtained as an off-white foam. MS m/e: 550.2 [M]+.

Example 92 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-methyl-cyclopropylmethyl ester
-97-ci cl N
O
N

O
N

O

In analogy to the procedure described for the synthesis of example 25, the title compound rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-methyl-cyclopropylmethyl ester was prepared from rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone using 2-methylcyclopropanemethanol (mixture of cis/trans) instead of 2-cyclopropylethanol and was obtained as an off-white foam. MS m/e: 550.2 [M]+.

Example 93 [(3S,4R)-4-(4-Chloro-phenyl)-1-(1,1-dioxo-hexahydro-116-thiopyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester ci O -C)-F
O
N
O

1 - - o r O

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound [(3S,4R)-4-(4-chloro-phenyl)-1-(1,1-dioxo-hexahydro-1)6-thiopyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from [(3S,4R)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using 1,1-dioxo-hexahydro-1 X6-thiopyran-4-carboxylic acid instead of 1-methylcyclopropane- l -carboxylic acid and was obtained as an off-white foam. MS m/e: 509.1 [M]+.
-98-Example 94 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester C

O

N
O
N N

\"N

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound [(3S,4R)-4-(4-chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using 5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carboxylic acid instead of methylcyclopropane-l-carboxylic acid and was obtained as an off-white foam. MS
m/e: 562.1 [M]+.

Example 95 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-benzyl ester F
CI
P
\ N 0 CI - -i O
N

O
N

In analogy to the procedure described for the synthesis of example 25, the title compound rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-
-99-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-benzyl ester was prepared from rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin- l -yl} -(1-methyl-cyclopropyl)-methanone using 4-fluorobenzyl alcohol instead of 2-cyclopropylethano1 and was obtained as an off-white foam. MS m/e: 590.2 [M]+.

Example 96 rac-1-{(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-3-(4-fluoro-phenyl)-1-methyl-urea Ci / \
N

O
N

O
N

O

To a solution of triphosgene (110 mg, 0.37 mmol) in dichloromethane (2 mL) was added at 0 C
very carefully 4-fluoroaniline (178 l, 1.86 mmol). After the resulting suspension was stirred for min. N,N-diisopropyl ethyl amine (381 l, 2.23 mmol) was added dropwise. The solution was stirred for 4 h at ambient temperature and then added to rac- {4-[(3S,4R)-3-(4-Chloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone (150 mg, 0.37 mmol). The resulting solution was irradiated in the microwave for 30 min at 80 C
15 before it was diluted with ethyl acetate (15 mL) and washed with an aqueous solution of sodium carbonate (1 M, 15 mL). The organic layer was separeted and washed with brine (15 mL) and the aqueous layers were extracted with ethyl acetate (20 mL). The combined organic layers were dried over sodium sulfate and concentrated. Purification by chromatography (Si02, heptane:ethyl acetate:methanol = 80:20:0 to 0:90:10) afforded the title compound (190 mg, 95%) as an off-white foam. MS m/e: 541.3 [M]+.

Example 97 rac- 1-(2-Cyclopropyl-ethyl)-3-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-1,3-dimethyl-urea
-100-cl cl / \ \ N N

O
N

O
N

O

To a solution ofrac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[l-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid chloride (250 mg, 0.50 mmol) in THE (1 mL) was added (2-cyclopropyl-ethyl)-methyl-amine (99 mg, 1.0 mmol) and N,N-diisopropyl ethyl amine (256, 1.50 mmol). The solution was irradiated in the microwave for 900 sec. at 130 C. before it was diluted with ethyl acetate (15 mL) and washed with an aqueous solution of sodium carbonate (1 M, 15 mL). The organic layer was separeted and washed with brine (15 mL) and the aqueous layers were extracted with ethyl acetate (20 mL). The combined organic layers were dried over sodium sulfate and concentrated. Purification by chromatography (Si02,ethyl acetate:methanol = 100:0 to 85:15) afforded the title compound (202 mg, 72%) as a white foam. MS m/e: 563.4 [M]+.

Example 98 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3-hydroxy-3-methyl-butyl ester HO
CI

CI O
O
O
N

In analogy to the procedure described for the synthesis of example 25, the title compound rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3-hydroxy-3-methyl-butyl ester was prepared from rac-{4-[(3 S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin- l -yl} -(1-methyl-cyclopropyl)-methanone using 3-methyl-1,3-butanedio1 instead of 2-cyclopropylethano1 and was obtained as an off-white foam. MS m/e: 568.2 [M]+.
-101-Example 99 rac {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4-difluoro-cyclohexylmethyl ester F
F
CI

/ \ \ O
Cl - N
O

N
O
N

O

In analogy to the procedure described for the synthesis of example 25, the title compound rac {(3R,4S)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4-difluoro-cyclohexylmethyl ester was prepared from rac- {4-[(3 S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin- l -yl}-(1-methyl-cyclopropyl)-methanone using (4,4-difluoro-cyclohexyl)-methanol instead of 2-cyclopropylethanol and was obtained as an off-white foam. MS m/e: 614.2 [M]+.
Example 100 {(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester F F
F
N
O
N

O
`

and Example 101 {(3 S,4R)-4-(4-C hloro-phenyl)-1- [ 1-(1-methyl-cyclop ropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester
-102-- F
CI

O
N

O
`

O

In analogy to the procedure described for the synthesis of example 44 (step c), the title compounds {(3R,4S)-4-(4-chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester and {(3S,4R)-4-(4-chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester were prepared from [(3R,4S)-4-(4-Chloro-phenyl)-pyrro lidin-3-yl]-methyl-carbamic acid 4,4,4-trifluoro-butyl ester using 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carboxylic acid instead of 1-methylcyclopropane-l-carboxylic acid and were obtained as a light brown gum. MS m/e: 558.1 [M]+.
The racemate was subjected to column chromatography on chiral phase to yield {(3R,4S)-4-(4-chloro-phenyl)-1-[l-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester (MS(m/e): 558.1 [M]+) as an off-white foam and {(3S,4R)-4-(4-chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -methyl-carbamic acid 4,4,4-trifluoro-butyl ester (MS(m/e): 558.1 [M]+) as an off-white foam.

Example 102 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4-difluoro-cyclohexyl ester cl O F
Cl / N F
O
N

O
N

O

In analogy to the procedure described for the synthesis of example 25, the title compound rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1 -(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4-difluoro-cyclohexyl ester was prepared from rac-{4-[(3 S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin- l -yl} -(1-
-103-methyl-cyclopropyl)-methanone using 4,4-difluoro-cyclohexano1 instead of 2-cyclopropylethanol and was obtained as an off-white foam. MS m/e: 600.2 [M]+.

Example 103 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester CI
F
O F
CI N-~
O
N

O
N

O

In analogy to the procedure described for the synthesis of example 25, the title compound rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester was prepared from rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone using 4-trifluoromethyl)cyclohexano1(cis/trans mixture) instead of 2-cyclopropylethanol and was obtained as an off-white foam. MS m/e:
632.2 [M]+.

Example 104 [(3 S,4R)-4-(4-C hloro-phenyl)-1-(4-cyano-cyclohexanecarbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester CI

Nom,( F
O

N
O

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound [(3S,4R)-4-(4-chloro-phenyl)-1-(4-cyan-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from [(3S,4R)-4-(4-chloro-phenyl)-
-104-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using 4-cyano-cyclohexanecarboxylic acid instead of 1-methylcyclopropane-1-carboxylic acid and was obtained as an off-white foam. MS m/e: 484.2 [M+H]+.

Example 105 {(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 1-methyl-cyclopropylmethyl ester CI
CI N
O
N

O
N

O

and Example 106 {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 1-methyl-cyclopropylmethyl ester CI
O
CI _ N-O
N

O
N

O

rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 1-methyl-cyclopropylmethyl ester was subjected to column chromatography on chiral phase to yield - {(3R,4S)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -methyl-carbamic acid 1-methyl-cyclopropylmethyl ester (MS(m/e): 550.4 [M]+) as a white foam and -{(3S,4R)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-
-105-3-yl}-methyl-carbamic acid 1-methyl-cyclopropylmethyl ester (MS(m/e): 550.4 [M]+) as a white foam.

Example 107 {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester CI
F
O F
CI N-~
.,~ O
N

O
N

O

and Example 108 {(3 S,4R)-4-(3,4-Dichlo ro-phenyl)-1- [ 1-(1-methyl-cyclop ropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester CI
F
CI \ \ N O F
-~ F
O
4: . I
N
O
N

O

rac- {(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester was subjected to column chromatography on chiral phase to yield {(3S,4R)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester (MS(m/e): 632.2 [M]+) as an off-white foam and {(3 S,4R)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester (MS(m/e): 632.2 [M]+) as an off-white foam.
-106-Example 109 {(3 S,4R)-4-(4-C hloro-phenyl)-1- [ 1-(1,1-dioxo-hexahydro-11 6-thiopyran-4-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester F
O
N
O
N
S O
O

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound {(3S,4R)-4-(4-chloro-phenyl)-1-[1-(1,1-dioxo-hexahydro-1)6-thiopyran-4-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using 1-(1,l-dioxo-hexahydro-1)6-thiopyran-4-yl)-piperidine-4-carboxylic acid instead of 1-methylcyclopropane-l-carboxylic acid and was obtained as an off-white foam. MS
m/e: 592.2 [M]+.

Example 110 {(3 S,4R)-4-(4-C hloro-phenyl)-1- [ 1-(6-chloro-pyridazin-3-yl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester C

N O F
O

N
O
N NON

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound {(3S,4R)-4-(4-chloro-phenyl)-1-[1-(6-chloro-pyridazin-3-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using 1-(6-chloro-3-
-107-pyridazinyl)-4-piperidinecarboxylic acid instead of 1-methylcyclopropane-1-carboxylic acid and was obtained as an off-white foam. MS m/e: 572.2 [M]+.

Example 111 rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3-difluoro-cyclopentylmethyl ester F F
CI
P
CI
~~ O
N
O
N

O

In analogy to the procedure described for the synthesis of example 25, the title compound rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3-difluoro-cyclopentylmethyl ester was prepared from rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone using (3,3-difluoro-cyclopentyl)-methanol instead of 2-cyclopropylethanol and was obtained as a colorless oil. MS m/e: 600.2 [M]+.

Example 112 {(3 S,4R)-4-(4-C hloro-phenyl)-1- [ 1-(tetrahydro-pyran-4-yl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester F
\ \ /
N
O
N
O

N
bo
-108-In analogy to the procedure described for the synthesis of example 44 (step c), the title compound {(3S,4R)-4-(4-chloro-phenyl)-1-[1-(tetrahydro-pyran-4-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using 1-(tetrahydro-pyran-4-yl)-piperidine-4-carboxylic acid instead of 1-methylcyclopropane-1-carboxylic acid and was obtained as a white solid. MS m/e: 544.2 [M]+.

Example 113 {(3 S,4R)-4-(3,4-Dichlo ro-phenyl)-1- [ 1-(1-methyl-cyclop ropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3-bromo-4-fluoro-phenyl ester CI

F
CI
\N~
O Br N

O
N

In analogy to the procedure described for the synthesis of example 25, the title compound rac-{(3 S,4R)-4-(3,4-dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3-bromo-4-fluoro-phenyl ester was prepared from rac-{4-[(3 S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin- l -yl} -(1-methyl-cyclopropyl)-methanone using 3-bromo-4-fluoropheno1 instead of 2-cyclopropylethano1 and was obtained as a colorless oil. MS m/e: 656.2 [M+H]+. It was subjected to column chromatography on chiral phase to yield {(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3-bromo-4-fluoro-phenyl ester (MS(m/e): 656.1 [M+H]+) as an off-white foam.

Example 114 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(3-morpholin-4-yl-propionyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester
-109-C _ O / F
N~
O
N
O~

No In analogy to the procedure described for the synthesis of example 44 (step c), the title compound [(3S,4R)-4-(4-chloro-phenyl)-1-(3-morpholin-4-yl-propionyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using 3-morpholin-4-yl-propionic acid instead of 1-methylcyclopropane-l-carboxylic acid and was obtained as a white solid. MS
m/e: 490.2 [M+H]+.

Example 115 {(3 S,4R)-4-(4-C hloro-phenyl)-1- [ 1-(1,1-dioxo-tetrahydro-11 6-thiophen-3-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester C1 _ \N ~O \ / F
/ \O
\O
N
O

N

b~~O
O

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound [(3S,4R)-4-(4-chloro-phenyl)-1-(3-morpholin-4-yl-propionyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using rac-1-(1,1-dioxo-tetrahydro-1)6-thiophen-3-yl)-piperidine-4-carboxylic acid and was obtained as a light yellow solid. MS
m/e: 578.2 [M]+.

Example 116 [(3 S,4R)-4-(4-C hloro-phenyl)-1-(4-hydroxymethyl-cyclohexanecarbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester
-110-ci O F
-( O
N
O

HO

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound [(3S,4R)-4-(4-chloro-phenyl)-1-(4-hydroxymethyl-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using 4-hydroxymethyl-l-cyclohexanecarboxylic acid instead of 1-methylcyclopropane-1-carboxylic acid and was obtained as an off-white solid. MS m/e: 489.2 [M+H]+.

Example 117 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(4,4-difluoro-cyclohexanecarbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester O F
N O

N
O

F
F

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound [(3S,4R)-4-(4-chloro-phenyl)-1-(4,4-difluoro-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using 4,4-Difluoro-cyclohexanecarboxylic acid instead of 1-methylcyclopropane-1-carboxylic acid and was obtained as an off-white solid. MS m/e: 494.2 [M]+.

Example 118 {(3 S,4R)-4-(4-C hloro-phenyl)-1- [ 1-(6-methyl-pyridazin-3-yl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester
-111-CI

N O F
O

N
O
N N

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound [(3S,4R)-4-(4-chloro-phenyl)-1-(4-hydroxymethyl-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using 1-(6-methyl-pyridazin-3-yl)-piperidine-4-carboxylic acid instead of 1-methylcyclopropane-l-carboxylic acid and was obtained as an off-white solid. MS m/e: 552.1 [M]+.

Example 119 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester \ / N~
q O
N
O

N, a) [(3S,4R -l-Benzyl-4-(4-chloro-phenyl)pyrrolidin-3-yll-methyl-carbamic acid tert-butyl ester To a solution of [(3S,4R)-l-benzyl-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-amine (4.42 g, 13 mmol) in dichloromethane (30 mL) was added at ambient temperature triethylamine (5.72 mL, 41 mmol), 4-dimethylaminopyridine (251 mg, 2 mmol) and di-tert.-butyl-dicarbonate (4.92 g, 23 mmol). The resulting solution was stirred for 20 h at ambient temperature before it was diluted with water (30 mL). The organic layer was washed with water (30 mL) and the combined aqueous layers were extracted with dichloromethane (60 mL). Drying over sodium sulfate and
-112-concentration afforded the title compound (7.94 g, 96%) as a brown oil. MS
m/e: 345.3 [M-tert-butyl) +.

b) [(3S,4R)-4-(4-Chloro-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid tert-butyl ester In analogy to the procedure described for the synthesis of example 1 (step e), the title compound [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester was prepared from [(3S,4R)-l-benzyl-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester instead of of rac-[(3R,4S)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester and was obtained as an orange brown oil.
MS m/e: 311.4 [M+H]+.

c) [(3S,4R)-4-(4-Chloro-phenyl)-I-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yll-methyl-carbamic acid tert-butyl ester In analogy to the procedure described for the synthesis of example 44 (step c), the title compound [(3S,4R)-4-(4-chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester was prepared from [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester using 5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carboxylic acid instead of 1-methylcyclopropane-l-carboxylic acid and was obtained as an orange oil. MS m/e: 524.3 [M]+.

Example 120 rac- [(3 S,4R)-1-(5'-tert-Butylcarbamoyl-3,4,5,6-tetrahydro-2H- [ 1,2' ]
bipyridinyl-4-carbonyl)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester q -- N~
O
N

O
N

N,Z: O
NH

a) rac-[(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yll-methyl-carbamic acid tert-butyl ester
-113-In analogy to the procedure described for the synthesis of example 1 (step f), the title compound rac-[(3 S,4R)-4-(4-chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester was prepared from rac-[(3R,4S)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester instead of rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester using 5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carboxylic acid instead of 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carboxylic acid and was obtained as an orange oil. MS m/e:
524.3 [M]+.

b) rac-4-[(3R,4S)-3-(4-Chloro-phenyl -4-methylamino-pyrrolidine-l-carbonyll-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-5'-carbonitrile In analogy to the procedure described for the synthesis of example 2 (step a), the title compound rac-4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-5'-carbonitrile was prepared from rac-[(3S,4R)-4-(4-chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester instead of rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester and was obtained as a light yellow solid. MS m/e: 424.3 [M+H]+.

c) rac-[(3S,4R)-1-(5'-tert-Butylcarbamoyl-3,4,5,6-tetrahydro-2H-[ 1 ,2']bipyridinyl-4-carbonyl (4-chloro-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester In analogy to the procedure described for the synthesis of example 2 (step b), the title compound rac-[(3 S,4R)-1-(5'-tert-butylcarbamoyl-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-5'-carbonitrile instead of rac- {4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone using 4-fluorophenyl chloroformate and was obtained as a side product as a white solid. MS m/e: 635.2 [M-H]-.

Example 121 rac-[(3S,4R)-1-(5'-tert-Butylcarbamoyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-carbonyl)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester
-114-- F

CI F

O
N

O
N

N O
I

N?( a) rac-[(3S,4R)4-(4-Chloro-phenyl)-I-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yll-methyl-carbamic acid tert-butyl ester In analogy to the procedure described for the synthesis of example 1 (step f), the title compound rac-[(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester was prepared from rac-[(3R,4S)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester instead of rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester using 5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carboxylic acid instead of 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carboxylic acid and was obtained as an orange oil. MS m/e:
524.3 [M]+.

b) rac-4-[(3R,4S)-3-(4-Chloro-phenyl -4-methylamino-pyrrolidine-l-carbonyll-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-5'-carbonitrile In analogy to the procedure described for the synthesis of example 2 (step a), the title compound rac-4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-5'-carbonitrile was prepared from rac-[(3S,4R)-4-(4-chloro-phenyl)- 1 -(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester instead of rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester and was obtained as a light yellow solid. MS m/e: 424.3 [M+H]+.

c) rac-[(3S,4R)-1-(5'-tert-Butylcarbamoyl-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl (4-chloro-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester In analogy to the procedure described for the synthesis of example 25, the title compound rac-[(3 S,4R)-1-(5'-tert-butylcarbamoyl-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-4-(4-
-115-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester was prepared fromrac-4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-5'-carbonitrile instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin- l -yl} -(1-methyl-cyclopropyl)-methanone using 4-trifluoromethyl-cyclohexanol (cis/trans mixture) instead of 2-cyclopropylethanol and was obtained as a side product as an off-white foam. MS
m/e: 692.3 [M]+.

Example 122 [(3R,4S)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester CI

Nom( F

\\O
N
O
N N

N

rac-[(3R,4S)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was subjected to column chromatography on chiral phase to yield [(3R,4S)-4-(4-chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (MS(m/e): 562.2 [M]+) as an off-white foam.

Example 123 {(3 S,4R)-4-(3,4-Dichlo ro-phenyl)-1- [ 1-(tetrahydro-pyran-4-yl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester
-116-CI
F
CI -0....4-F

O F
N

O
N

O

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound {(3 S,4R)-4-(3,4-dichloro-phenyl)-1-[1-(tetrahydro-pyran-4-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester was prepared from [(3S,4R)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester instead of [(3 S,4R)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using 1-(tetrahydro-pyran-4-yl)-piperidine-4-carboxylic acid instead of 1-methylcyclopropane-1-carboxylic acid and was obtained as an off-white foam. MS m/e: 634.2 [M]+.

Example 124 rac- [(3 S,4R)-1-(5'-tert-Butylcarbamoyl-3,4,5,6-tetrahydro-2H- [ 1,2' ]
bipyridinyl-4-carbonyl)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4,4,4-trifluoro-butyl ester CI
F F
;N--~
O
N

O
N

N~ I O
NH

In analogy to the procedure described for the synthesis of example 25, the title compound rac-[(3 S,4R)-1-(5'-tert-butylcarbamoyl-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4,4,4-trifluoro-butyl ester was prepared from rac-4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-5'-carbonitrile instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-
-117-methanone using 4,4,4-trifluoro-l-butanol instead of 2-cyclopropylethanol and was obtained as a side product as a brown oil. MS m/e: 651.2 [M-H]-.

Example 125 [(3R,4S)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester F F

CI
F
b, N-~
o N

N

N~
N

and Example 126 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester F F

CI F
om N
O
N

O

N

In analogy to the procedure described for the synthesis of example 25, the title compounds rac-[(3R,4S)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester were prepared from rac-4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-5'-carbonitrile instead of rac- {4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone using
-118-4-trifluoromethyl-cyclohexanol (cis/trans mixture) instead of 2-cyclopropylethanol and were obtained as a colorless oil. MS m/e: 618.2 [M]+. It was subjected to column chromatography on chiral phase to yield [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester (MS(m/e): 617.4 [M]+) as a yellow solid and [(3R,4S)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester (MS(m/e): 617.4 [M]+) as a yellow solid.

Example 127 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4,4,4-trifluoro-butyl ester ci F
O~F
N---N

O
N

N

and Example 128 [(3R,4S)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4,4,4-trifluoro-butyl ester ci F F
N ~.( O
N

O
N

N

In analogy to the procedure described for the synthesis of example 25, the title compounds rac-[(3R,4S)-4-(4-chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4,4,4-trifluoro-butyl ester were prepared from rac-4-
-119-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-5'-carbonitrile instead of rac- {4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone using 4,4,4-trifluoro-l-butanol instead of 2-cyclopropylethanol and were obtained as a yellow solid.
MS m/e: 578.4 [M+H]+. It was subjected to column chromatography on chiral phase to yield [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4,4,4-trifluoro-butyl ester (MS(m/e):
577.2 [M]+) as a yellow foam [(3R,4S)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4,4,4-trifluoro-butyl ester (MS(m/e): 577.2 [M]+) as a yellow foam.

Example 129 {(3 S,4R)-4-(4-Fluoro-phenyl)-1- [ 1-(1-methyl-cyclop ropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester F

O
N

O
NK
O

a) rac- 3S,4R -l-Benzyl-3-(4-fluoro-phenyl -4-nitro-pyrrolidine In analogy to the procedure described for the synthesis of example 1 (step a), the title compound rac-(3S,4R)-l-benzyl-3-(4-fluoro-phenyl)-4-nitro-pyrrolidine was prepared from 1-fluoro-4-((E)-2-nitro-vinyl)-benzene instead of 1,2-dichloro-4-((E)-2-nitro-vinyl)-benzene and was obtained as a light yellow oil. MS m/e: 301.2 [M+H]+.

b) rac- 3R,4S, -l-Benzyl-4-(4-fluoro-phenyl)pyrrolidin-3-ylamine In analogy to the procedure described for the synthesis of example 1 (step b), the title compound rac-(3R,4S)-l-benzyl-4-(4-fluoro-phenyl)-pyrrolidin-3-ylamine was prepared from rac-(3S,4R)-1-benzyl-3-(4-fluoro-phenyl)-4-nitro-pyrrolidine instead of rac-(3R,4S)-1-Benzyl-3-(3,4-dichloro-phenyl)-4-nitro-pyrrolidine and was obtained as a dark brown oil. MS
m/e: 271.3 [M+H]+.
-120-c) rac-[(3R,4S)-l-Benzyl4-fluoro-phenylpyrrolidin-3-yll-methyl-amine In analogy to the procedure described for the synthesis of example 1 (step c), the title compound rac-[(3R,4S)-l-benzyl-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-amine was prepared from rac-(3R,4S)-l-benzyl-4-(4-fluoro-phenyl)-pyrrolidin-3-ylamine instead of rac-(3S,4R)-1-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-ylamine and was obtained as a light brown oil. MS m/e:
285.2 [M+H]+.

d) rac-[(3R,4S)-l-Benzyl4-fluoro-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester In analogy to the procedure described for the synthesis of example 2 (step b), the title compound rac-[(3R,4S)-l-benzyl-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-[(3R,4S)-1-benzyl-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-amine instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone and was obtained as a yellow oil.
MS m/e: 423.2 [M+H]+.

e) rac-[(3R,4S)-4-(4-Fluoro-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester In analogy to the procedure described for the synthesis of example 1 (step e), the title compound rac-[(3R,4S)-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-[(3R,4S)-l-benzyl-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of rac-[(3R,4S)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester and was obtained as a dark brown oil which was used without further purification.

f) rac-{(3R,4S)-4-(4-Fluoro-phenyl [mil-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyll-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester In analogy to the procedure described for the synthesis of example 1 (step f), the title compound rac-{(3R,4S)-4-(4-fluoro-phenyl)-1-[1 -(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-[(3R,4S)-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester and was obtained as a light brown semi-solid. MS m/e: 526.4 [M+H]+.

g) {(3S,4R)-4-(4-Fluoro-phenyl [mil-methyl-cyclopropanecarbonyl)piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester
-121-rac- {(3R,4S)-4-(4-Fluoro-phenyl)-1-El -(1 -methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester was subjected to column chromatography on chiral phase to yield {(3S,4R)-4-(4-Fluoro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester (MS(m/e): 526.4 [M+H]+) as a white foam.
Example 130 {(3R,4S)-4-(4-Fluoro-phenyl)-1- [ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester F

N~
O
N

O
NK
O

rac-{(3R,4S)-4-(4-Fluoro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester was subjected to column chromatography on chiral phase to yield {(3R,4S)-4-(4-Fluoro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester (MS(m/e): 526.4 [M+H]+) as a colorless waxy solid.

Example 131 [(3 S,4R)-1-(5'-Cyano-3,4,5,6-tetrahydro-2H- [ 1,2'] bipyridinyl-4-carbonyl)-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester F
O

N
O
N

\ /N
N

and
-122-Example 132 [(3R,4S)-1-(5'-Cyano-3,4,5,6-tetrahydro-2H- [ 1,2'] bipyridinyl-4-carbonyl)-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester F
O ~ I

O
N

N
N

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound rac-[(3R,4S)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from rac-[(3R,4S)-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using 5'-cyan-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carboxylic acid instead of 1-methylcyclopropane-l-carboxylic acid and was obtained as a brown semisolid. MS
m/e: 562.1 [M]+. The racemate was then subjected to column chromatography on chiral phase to yield -[(3 S,4R)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (MS(m/e): 546.3 [M+H]+) as a yellow waxy solid and -[(3R,4S)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (MS(m/e): 546.3 [M+H]+) as a yellow waxy solid.

Example 133 4- {(3R,4S)-3-(4-C hloro-phenyl)-4- [(4-fluoro-phenoxycarbonyl)-methyl-amino] -pyrrolidine-1-carbonyl}-piperidine-l-carboxylic acid tert-butyl ester CI
\ F
/ \ N O
O
N

O
NY o
-123-In analogy to the procedure described for the synthesis of example 44 (step c), the title compound 4- {(3R,4S)-3-(4-chloro-phenyl)-4-[(4-fluoro-phenoxycarbonyl)-methyl-amino]-pyrrolidine-l-carbonyl}-piperidine-l-carboxylic acid tert-butyl ester was prepared from [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of [(3S,4R)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using piperidine-1,4-dicarboxylic acid mono-tert-butyl ester instead of 1-methylcyclopropane-l-carboxylic acid and was obtained as a light-brown gum. MS
m/e: 560.3 [M]+.

Example 134 {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(5-methyl-[1,3,4] oxadiazol-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester C

\ O F
N
O
N

O

N'Y N~N
O

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound 4- {(3R,4S)-3-(4-chloro-phenyl)-4-[(4-fluoro-phenoxycarbonyl)-methyl-amino]-pyrrolidine-l-carbonyl }-piperidine-l-carboxylic acid tert-butyl ester was prepared from [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of [(3S,4R)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using 1-(5-methyl-[1,3,4]oxadiazol-2-yl)-piperidine-4-carboxylic acid instead of 1-methylcyclopropane-l-carboxylic acid and was obtained as an off-white foam. MS
m/e: 542.3 [M]+.

Example 135 [(3 S,4R)-4-(4-C hloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester
-124-C

\ O F
N
O
N

O
NH
In analogy to the procedure described for the synthesis of example 2 (step a), the title compound [(3S,4R)-4-(4-chloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from 4- {(3R,4S)-3-(4-chloro-phenyl)-4-[(4-fluoro-phenoxycarbonyl)-methyl-amino]-pyrrolidine-l-carbonyl}-piperidine-l-carboxylic acid tert-butyl ester instead of rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester and was obtained as a light brown foam. MS m/e: 460.4 [M+H]+.

Example 136 [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid ethyl ester C

- N~
O
N

O
N N

a) 4-[(3R,4S)-3-(4-Chloro-phenyl -4-methylamino-pyrrolidine-l-carbonyll-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-5'-carbonitrile To a solution of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester (3.20 g, 6.12 mmol) in acetonitrile (30 mL) was added at ambient temperature trifluoroacetic acid (4.7 mL, 61.2 mmol) and the reaction mixture was stirred for 4 h at this temperature.
After concentration, the residue was dissolved in ethyl acetate and washed with aqueous sodium carbonate (20%).
-125-The organic layer was dried over sodium sulfate and concentrated affording the title compound (1.90 g, 73%) as a light yellow foam. MS m/e: 424.2 [M+H]+.

b) [(3S,4R4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yll-methyl-carbamic acid ethyl ester To a solution of 4-[(3R,4S)-3-(4-Chloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-5'-carbonitrile (30 mg, 0.07 mmol) in dichloromethane (1 mL) were added triethylamine (13 uL, 0.09 mmol) and ethyl chloroformate (9 uL, 0.09 mmol) and the reaction mixture was stirred at ambient temperature for 3 h. After concentration it was purified by chromatography affording the title compound (20 mg, 57%) as a colorless foam. MS
m/e: 496.4 [M]+.

Example 137 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid isopropyl ester C

0-<
- N~
O
N

O
N

In analogy to the procedure described for the synthesis of example 136, the title compound [(3 S,4R)-4-(4-chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid isopropyl ester was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-5'-carbonitrile using isopropyl chloroformate instead of ethyl chloroformate and was obtained as a colorless foam. MS m/e: 510.4 [M]+.

Example 138 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid propyl ester
-126-CI

N
O
N

O
N
In analogy to the procedure described for the synthesis of example 136, the title compound [(3 S,4R)-4-(4-chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid propyl ester was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-5'-carbonitrile using propyl chloroformate instead of ethyl chloroformate and was obtained as a colorless foam. MS m/e: 510.4 [M]+.

Example 139 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid isobutyl ester cl - N~
O
N

O
N N

In analogy to the procedure described for the synthesis of example 136, the title compound [(3 S,4R)-4-(4-chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid isobutyl ester was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-5'-carbonitrile using isobutyl chloroformate instead of ethyl chloroformate and was obtained as a colorless foam. MS m/e: 524.5 [M]+.
-127-Example 140 {(3 S,4R)-4-(4-C hloro-phenyl)-1- [ 1-(6-cyano-pyridazin-3-yl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester O
N / \ F
~
O
N

O

NL'N

\\
N

To a solution of [(3S,4R)-4-(4-chloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (186 mg, 0.40 mmol) in DMF (2 mL) was added 6-chloro-3-pyridazinecarbonitrile (67 mg, 0.48 mmol) and N,N-diisopropyl ethyl amine (208, 1.21 mmol).
The resulting dark brown solution was stirred for 3 h at 80 C. After cooling to ambient temperature the reaction mixture was diluted with ethyl acetate (15 mL) and washed with aqueous sodium carbonate (1M, 15 mL), water (15 mL) and brine (15 mL). The aqueous layers were extracted with ethyl acetate (15 mL) and the combined organic layers dried over sodium sulfate. Concentration and purification by chromatography (Si02, heptane:ethyl acetate = 50:50 to 0:100) afforded the title compound (167 mg, 73%) as a white foam. MS m/e:
563.3 [M]+.

Example 141 {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid isobutyl ester ci N
O
N

O
N

O

a) {(3S,4R)-4-(4-Chloro-phenyl)-I-[I-(l-methyl-cyclopropanecarbonyl)-piperidine-4-arbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester In analogy to the procedure described for the synthesis of example 44 (step c), the title
-128-compound {(3S,4R)-4-(4-chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-arbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester was prepared from [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester instead of [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using 1-methylcyclopropane-l-carboxylic acid and was obtained as an off-white foam. MS
m/e: 504.2 [M]+.

b) [(3R,4S)-3-(4-Chloro-phenyl -4-methylamino-pyrrolidin-1-yll-[1- 1-methyl-cyclopropanecarbonyl)-piperidin-4-yl]-methanone In analogy to the procedure described for the synthesis of example 2 (step a), the title compound [(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidin-l-yl]-[1-(1-methyl-cyclopropanecarbonyl)-piperidin-4-yl]-methanone was prepared from {(3S,4R)-4-(4-chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-arbonyl]-pyrrolidin-3-yl} -methyl-carbamic acid tert-butyl ester instead of rac-{(3R,4S)-4-(3,4-dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester and was obtained as a light yellow foam. MS m/e: 403.9 [M]+.

c) {(3S,4R)-4-(4-Chloro-phenyl)-I-[I-(l-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid isobutyl ester In analogy to the procedure described for the synthesis of example 136, the title compound {(3 S,4R)-4-(4-chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid isobutyl ester was prepared from [(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidin-1-yl]-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidin-4-yl]-methanone instead of 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-5'-carbonitrile using isobutyl chloroformate instead of ethyl chloroformate and was obtained as a colorless foam. MS m/e: 504.2 [M]+.

Example 142 {(3 S,4R)-4-(4-C hloro-phenyl)-1- [ 1-(1-methyl-cyclop ropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid propyl ester
-129-O
N

O
N

O

In analogy to the procedure described for the synthesis of example 136, the title compound {(3 S,4R)-4-(4-chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid propyl ester was prepared from [(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidin-1-yl]-[1-(1-methyl-cyclopropanecarbonyl)-piperidin-4-yl]-methanone instead of 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-5'-carbonitrile using propyl chloroformate instead of ethyl chloroformate and was obtained as a colorless foam. MS m/e: 490.4 [M]+.

Example 143 [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid cyclohexyl ester O

N
O
N

N

In analogy to the procedure described for the synthesis of example 25, the title compound [(3S ,4R)-4-(4-chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid cyclohexyl ester was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-5'-carbonitrile instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone using cyclohexanol instead of 2-cyclopropylethanol and was obtained as a colorless foam. MS m/e: 550.4 [M]+.
-130-Example 144 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3,3,3-trifluoro-propyl ester ci F
OF
N--- F
O
N
O
N

N

and Example 145 [(3R,4S)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3,3,3-trifluoro-propyl ester ci F
O-11~F
N--- F
N O
N
O
N

N

In analogy to the procedure described for the synthesis of example 25, the title compounds rac-[(3R,4S)-4-(4-chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3,3,3-trifluoro-propyl ester were prepared from rac-4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-5'-carbonitrile instead of rac- {4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone using 3,3,3-trifluoro-l-propanol instead of 2-cyclopropylethanol and were obtained as a colorless oil.
MS m/e: 563.2 [M]+. It was subjected to column chromatography on chiral phase to yield [(3 S,4R)-4-(4-chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3,3,3-trifluoro-propyl ester (MS(m/e):
563.2 [M]+) as a
-131-yellow solid and[(3R,4S)-4-(4-chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3,3,3-trifluoro-propyl ester (MS(m/e): 563.2 [M]+) as a yellow foam.

Example 146 [(3S,4R)-4-(4-Chloro-phenyl)-1-(2,2-dimethyl-tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester CI

N-~
O
N

O
O
In analogy to the procedure described for the synthesis of example 44 (step c), the title compound [(3S,4R)-4-(4-chloro-phenyl)-1-(2,2-dimethyl-tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of [(3S,4R)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using 2,2-dimethyl-tetrahydro-2H-pyrane-4-carboxylic acid instead of 1-methylcyclopropane-1-carboxylic acid and was obtained as an off-white foam. MS m/e: 489.3 [M+H]+.

Example 147 [(3 S,4R)-4-(4-C hloro-phenyl)-1-(tetrahydro-pyran-3-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester CI

- ...N
, 0 N

O O

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound [(3S,4R)-4-(4-chloro-phenyl)-1-(tetrahydro-pyran-3-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of [(3S,4R)-4-(3,4-dichloro-
-132-phenyl)-pyrro lidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using rac-tetrahydro-pyran-3-carboxylic acid instead of 1-methylcyclopropane-l-carboxylic acid and was obtained as an off-white foam. MS m/e: 461.2 [M+H]+.

Example 148 [(3S,4R)-4-(4-Chloro-phenyl)-1-(tetrahydro-furan-3-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester C

N O F
O
N
O o In analogy to the procedure described for the synthesis of example 44 (step c), the title compound [(3S,4R)-4-(4-chloro-phenyl)-1-(tetrahydro-furan-3-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of [(3 S,4R)-4-(3,4-dichloro-phenyl)-pyrro lidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using rac-tetrahydro-3-furoic acid instead of 1-methylcyclopropane-1-carboxylic acid and was obtained as a light brown oil. MS m/e: 447.2 [M+H]+.

Example 149 [(3 S,4R)-4-(4-C hloro-phenyl)-1-(3-methoxy-cyclobutanecarbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester C1 0-<:~-F
N-~
O
N

O
O

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound [(3S,4R)-4-(4-chloro-phenyl)-1-(3-methoxy-cyclobutanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from [(3S,4R)-4-(4-chloro-phenyl)-
-133-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of [(3 S,4R)-4-(3,4-dichloro-phenyl)-pyrro lidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using 3-methoxycyclobutanecarboxylic acid instead of 1-methylcyclopropane-1-carboxylic acid and was obtained as a light brown oil. MS m/e: 461.2 [M+H]+.

Example 150 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclopropyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester C1 _ N O F
O
N

O

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound [(3S,4R)-4-(4-chloro-phenyl)-1-(1-cyclopropyl-piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of [(3 S,4R)-4-(3,4-dichloro-phenyl)-pyrro lidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using 1-cyclopropyl-piperidine-4-carboxylic acid instead of 1-methylcyclopropane-1-carboxylic acid and was obtained as a white foam. MS m/e: 500.3 [M]+.

Example 151 3- {(3R,4S)-3-(4-C hloro-phenyl)-4- [(4-fluoro-phenoxycarbonyl)-methyl-amino] -pyrrolidine-1-carbonyl}-pyrrolidine-l-carboxylic acid tert-butyl ester F
CI

N-O
O
N

O O
N-!\/
-134-In analogy to the procedure described for the synthesis of example 44 (step c), the title compound 3-{(3R,4S)-3-(4-chloro-phenyl)-4-[(4-fluoro-phenoxycarbonyl)-methyl-amino]-pyrrolidine-l-carbonyl}-pyrrolidine-l-carboxylic acid tert-butyl ester was prepared from [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of [(3S,4R)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using rac-pyrrolidine-1,3-dicarboxylic acid 1-tert-butyl ester instead of 1-methylcyclopropane-l-carboxylic acid and was obtained as a light yellow oil.
MS m/e: 546.2 [M]+.

Example 152 {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid cyclohexyl ester \ / N O-0 O
N

O

O

In analogy to the procedure described for the synthesis of example 25, the title compound {(3 S,4R)-4-(4-chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid cyclohexyl ester was prepared from [(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidin- l -yl]-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidin-4-yl]-methanone instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone using cyclohexanol instead of 2-cyclopropylethanol and was obtained as a colorless foam. MS m/e: 530.2 [M]+.

Example 153 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1-cyclopropyl-ethyl ester
-135-N-~
O
N

O
N N

In analogy to the procedure described for the synthesis of example 25, the title compound [(3 S,4R)-4-(4-chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1-cyclopropyl-ethyl ester was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-3,4,5,6-tetrahydro-[ 1,2']bipyridinyl-5'-carbonitrile instead of rac- {4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone using 1-cyclopropylethanol instead of 2-cyclopropylethanol and was obtained as a colorless foam. MS
m/e: 536.3 [M]+.

Example 154 {(3 S,4R)-4-(4-C hloro-phenyl)-1- [ 1-(1-methyl-cyclop ropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 1-cyclopropyl-ethyl ester O
N

O
N
\
O

In analogy to the procedure described for the synthesis of example 25, the title compound {(3S,4R)-4-(4-chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 1-cyclopropyl-ethyl ester was prepared from [(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidin-1-yl] - [ 1-(1-methyl-cyclopropanecarbonyl)-piperidin-4-yl]-methanone instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone using cyclopropylethanol instead of 2-cyclopropylethanol and was obtained as a colorless foam. MS
m/e: 516.5 [M]+.
-136-Example 155 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid oxetan-3-yl ester VVV

N
O
N N

In analogy to the procedure described for the synthesis of example 25, the title compound [(3 S,4R)-4-(4-chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid oxetan-3-yl ester was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-5'-carbonitrile instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone using oxetan-3-ol instead of 2-cyclopropylethanol and was obtained as a colorless foam. MS m/e: 524.4 [M]+.

Example 156 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid tetrahydro-pyran-4-yl ester O-CO

N
O
N N

In analogy to the procedure described for the synthesis of example 25, the title compound [(3S ,4R)-4-(4-chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid tetrahydro-pyran-4-yl ester was prepared from 4-
-137-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-5'-carbonitrile instead of rac- {4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone using tetrahydropyran-4-ol instead of 2-cyclopropylethanol and was obtained as a colorless foam. MS
m/e: 552.4 [M]+.

Example 157 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid sec-butyl ester ~
0-<
\ / N
O
N

O

N 10 In analogy to the procedure described for the synthesis of example 25, the title compound [(3S ,4R)-4-(4-chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid sec-butyl ester was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-5'-carbonitrile instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone using 2-butano1 instead of 2-cyclopropylethanol and was obtained as a colorless foam. MS m/e: 524.4 [M]+.

Example 158 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,2,2-trifluoro-ethyl ester
-138-O F
N
O
N

O
N N

In analogy to the procedure described for the synthesis of example 25, the title compound [(3 S,4R)-4-(4-chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,2,2-trifluoro-ethyl esterwas prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-5'-carbonitrile instead of rac- {4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone using 2,2,2-trifluoroethanol instead of 2-cyclopropylethanol and was obtained as a colorless foam. MS
m/e: 550.4 [M]+.

Example 159 [(3 S,4R)-1-(5'-Cyano-3,4,5,6-tetrahydro-2H- [ 1,2'] bipyridinyl-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester ci cl \
NO~ F
(-F
O F

N
O
N N

N

a) (3,4-Dichloro-phenyl -propynoic acid ethyl ester In analogy to the procedure described for the synthesis of example 89 (step a), the title compound (3,4-dichloro-phenyl)-propynoic acid ethyl ester was prepared from 3,4-dichloroiodobenzene instead of 1-chloro-4-iodobenzene and was obtained as a brown solid. MS
m/e: 244.0 [M+H]+.
-139-b) 1-Benzyl-4-(3,4-dichloro-phenyl -2,5-dihydro-lH-pyrrole-3-carboxylic acid In analogy to the procedure described for the synthesis of example 89 (step b), the title compound 1-benzyl-4-(3,4-dichloro-phenyl)-2,5-dihydro-lH-pyrrole-3-carboxylic acid was prepared from (3,4-dichloro-phenyl)-propynoic acid ethyl ester instead of (4-chloro-phenyl)-propynoic acid ethyl ester and was obtained as an off-white solid. MS m/e:
347.9 [M-H]-.
c) (3R,4R)-l-Benzyl-4-(3,4-dichloro-phenyl)pyrrolidine-3-carboxylic acid In analogy to the procedure described for the synthesis of example 89 (step c), the title compound (3R,4R)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidine-3-carboxylic acid was prepared from 1-benzyl-4-(3,4-dichloro-phenyl)-2,5-dihydro-lH-pyrrole-3-carboxylic acid instead of 1-benzyl-4-(4-chloro-phenyl)-2,5-dihydro-lH-pyrrole-3-carboxylic acid and was obtained as light grey crystalls (e.e. >99.9% R,R (chiral HPLC)). MS m/e:
350.2 [M]+.

d) (3R,4R)-l-Benzyl-4-(3,4-dichloro-phenyl)-pyrrolidine-3-carboxylic acid methyl ester In analogy to the procedure described for the synthesis of example 89 (step d), the title compound (3R,4R)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidine-3-carboxylic acid methyl ester was prepared from (3R,4R)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidine-3-carboxylic acid instead of (3R,4R)-l-Benzyl-4-(4-chloro-phenyl)-pyrrolidine-3-carboxylic acid and was obtained as a brown oil. MS m/e: 366.2 [M+H]+.
e) (3S,4R)-l-Benzyl-4-(3,4-dichloro-phenyl)pyrrolidine-3-carboxylic acid methyl ester In analogy to the procedure described for the synthesis of example 89 (step e), the title compound (3S,4R)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidine-3-carboxylic acid methyl ester was prepared from (3R,4R)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidine-3-carboxylic acid methyl ester instead of (3R,4R)-l-benzyl-4-(4-chloro-phenyl)-pyrrolidine-3-carboxylic acid methyl ester and was obtained as a light yellow oil. MS m/e: 366.2 [M+H]+.

f) (3S,4R)-l-Benzyl-4-(3,4-dichloro-phenyl)-pyrrolidine-3-carboxylic acid amide In analogy to the procedure described for the synthesis of example 89 (step f), the title compound (3S,4R)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidine-3-carboxylic acid amide was prepared from (3S,4R)-l-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidine-3-carboxylic acid methyl ester instead of (3S,4R)-l-benzyl-4-(4-chloro-phenyl)-pyrrolidine-3-carboxylic acid methyl ester and was obtained as a white solid. MS m/e: 351.3 [M+H]+.
-140-g) [(3S,4R -1-Benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yll-carbamic acid methyl ester In analogy to the procedure described for the synthesis of example 89 (step g), the title compound [(3S,4R)-1-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-carbamic acid methyl ester was prepared from (3S,4R)-1-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidine-3-carboxylic acid amide instead of (3S,4R)-1-benzyl-4-(4-chloro-phenyl)-pyrrolidine-3-carboxylic acid amide and was obtained as a white solid. MS m/e: 381.3 [M+H]+.

h) (3S,4R)-1-benzyl-4-(3,4-dichlorophenyl)-N-methyllpyrrolidin-3-amine In analogy to the procedure described for the synthesis of example 89 (step h), the title compound [(3S,4R)-1-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-amine was prepared from [(3S,4R)-1-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-carbamic acid methyl ester instead of [(3S,4R)-1-benzyl-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-carbamic acid methyl ester and was obtained as a light yellow liquid. MS m/e: 337.4 [M+H]+.

i) [(3S,4R -1-Benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester In analogy to the procedure described for the synthesis of example 25, the title compound [(3S,4R)-1-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester was prepared from [(3S,4R)-1-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-amine instead of rac- {4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone using 4-(trifluoromethyl)cyclohexanol (cis/trans 1:3) instead of 2-cyclopropylethanol and was obtained as a white foam. MS m/e: 529.2 [M]+.

j) [(3S,4R)-4-(3,4-Dichloro-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester In analogy to the procedure described for the synthesis of example 1 (step e), the title compound [(3S,4R)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester was prepared from [(3S,4R)-1-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester instead of of rac-[(3R,4S)-1-benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester and was obtained as a light brown oil. MS m/e: 439.1 [M]+.
-141-k) [(3S,4R)-I-(5'-Cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester In analogy to the procedure described for the synthesis of example 44 (step c), the title compound [(3S,4R)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester was prepared from [(3S,4R)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester instead of [(3S,4R)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using 5'-cyano-3,4,5,6-tetrahydro-[ 1,2']bipyridinyl-4-carboxylic acid instead of 1-methylcyclopropane-l-carboxylic acid and was obtained as an off-white foam. MS m/e: 652.3 [M]+.

Example 160 {(3 S,4R)-4-(3,4-Dichlo ro-phenyl)-1- [ 1-(6-methyl-pyridazin-3-yl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester CI
C11\ \ N 0_O ...... F F
O F
N

O
N N

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound {(3 S,4R)-4-(3,4-dichloro-phenyl)-1-[1-(6-methyl-pyridazin-3-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester was prepared from [(3S,4R)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester instead of [(3S,4R)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using 1-(6-methyl-pyridazin-3-yl)-piperidine-4-carboxylic acid instead of 1-methylcyclopropane-1-carboxylic acid and was obtained as an off-white foam. MS m/e: 642.4 [M]+.

Example 161 [(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-(tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester
-142-CI

CI \ O
N ., , F
O

N
O
O

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound [(3 S,4R)-4-(3,4-dichloro-phenyl)-1-(tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester was prepared from [(3S,4R)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester instead of [(3S,4R)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using tetrahydropyran-4-yl-carboxylic acid instead of 1-methylcyclopropane-l-carboxylic acid and was obtained as an off-white foam. MS m/e: 551.4 [M]+.

Example 162 {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tetrahydro-pyran-4-yl ester CI

\ N 0-CO
O

N
O

N` \

In analogy to the procedure described for the synthesis of example 25, the title compound {(3 S,4R)-4-(4-chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tetrahydro-pyran-4-yl ester was prepared from [(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidin- l -yl]-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidin-4-yl]-methanone instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone using tetrahydropyran-4-ol instead of 2-cyclopropylethanol and was obtained as a colorless foam. MS
m/e: 532.4 [M]+.
-143-Example 163 {(3 S,4R)-4-(4-C hloro-phenyl)-1- [ 1-(1-methyl-cyclop ropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid sec-butyl ester N

N

In analogy to the procedure described for the synthesis of example 25, the title compound {(3 S,4R)-4-(4-chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -methyl-carbamic acid sec-butyl ester was prepared from [(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidin- l -yl]-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidin-4-yl]-methanone instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone using 2-butano1 instead of 2-cyclopropylethanol and was obtained as a colorless foam. MS m/e: 504.2 [M]+.

Example 164 {(3 S,4R)-4-(4-C hloro-phenyl)-1- [ 1-(1-methyl-cyclop ropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,2,2-trifluoro ethyl ester CI F F

N

In analogy to the procedure described for the synthesis of example 25, the title compound {(3 S,4R)-4-(4-chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,2,2-trifluoro ethyl ester was prepared from [(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidin- l -yl] - [ 1-(1-methyl-cyclopropanecarbonyl)-piperidin-4-yl]-methanone instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-
-144-pyrrolidine-l-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone using 2,2,2-trifluoroethanol instead of 2-cyclopropylethanol and was obtained as a colorless foam. MS m/e:
530.1 [M]+.

Example 165 {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,2,2-trifluoro-l-methyl-ethyl ester O
N

O
N
\
O

In analogy to the procedure described for the synthesis of example 25, the title compound {(3 S,4R)-4-(4-chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,2,2-trifluoro-l-methyl-ethyl ester was prepared from [(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidin-1-yl]-[ 1-(l -methyl-cyclopropanecarbonyl)-piperidin-4-yl]-methanone instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin-1-yl} -(1-methyl-cyclopropyl)-methanone using 1,1,1-trifluoro-isopropanol instead of 2-cyclopropylethano1 and was obtained as a colorless foam. MS m/e: 544.2 [M]+.

Example 166 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,2,2-trifluoro-l-methyl-ethyl ester CI F F
F
N
O
N

O
N N
-145-In analogy to the procedure described for the synthesis of example 25, the title compound [(3 S,4R)-4-(4-chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,2,2-trifluoro-1-methyl-ethyl esterwas prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-5'-carbonitrile instead of rac- {4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone using 1,1,1-trifluoro-isopropanol instead of 2-cyclopropylethanol and was obtained as a colorless foam. MS m/e: 564.3 [M]+.

Example 167 {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(4-methyl-pyrimidin-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester F
CI \ /
O
N

O
.5'--N
I ID
N/

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound {(3S,4R)-4-(4-chloro-phenyl)-1-[1-(4-methyl-pyrimidin-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of [(3S,4R)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using 1-(4-methyl-pyrimidin-2-yl)-piperidine-4-carboxylic acid instead of 1-methylcyclopropane-l-carboxylic acid and was obtained as a yellow foam. MS m/e: 552.4 [M]+.

Example 168 [(3 S,4R)-4-(4-C hloro-phenyl)-1-(pyrrolidine-3-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester
-146-F

O
N

O
~CNH
To a solution of 3-{(3R,4S)-3-(4-chloro-phenyl)-4-[(4-fluoro-phenoxycarbonyl)-methyl-amino]-pyrrolidine-l-carbonyl}-pyrrolidine-l-carboxylic acid tert-butyl ester (1.17 g, 2.14 mmol) in dichloromethane (20 mL) was added at ambient temperature trifluoroacetic acid (1.64 mL, 21.4 mmol) and the reaction mixture was stirred for 3 h. It was treated with an aqueous solution of sodium carbonate (1M, 50 mL) and the organic layer was separeted and washed with brine (40 mL). The aqueous layer was extracted with dichloromethane (40 mL) and the combined organic layers were dried over sodium sulfate. Concentration afforded the title compound (760 mg, 79%) as a white semi-solid. MS m/e: 446.1 [M+H]+.

Example 169 {(3 S,4R)-4-(4-C hloro-phenyl)-1- [ 1-(5-fluoro-pyrimidin-2-yl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester F
CI /
N
i. N
O
N

O

-'--ON )11*' N
I
N
F

In analogy to the procedure described for the synthesis of example 44 (step c), the title compound {(3S,4R)-4-(4-chloro-phenyl)-1-[1-(5-fluoro-pyrimidin-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of [(3S,4R)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using 1-(5-
-147-fluoro-pyrimidin-2-yl)-piperidine-4-carboxylic acid instead of 1-methylcyclopropane-l-carboxylic acid and was obtained as a yellow foam. MS m/e: 556.2 [M]+.

Example 170 [(3 S,4R)-4-(4-C hloro-phenyl)-1-(1-propionyl-pyrrolidine-3-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester F
CI

N O
O
N

O
N

In analogy to the procedure described for the synthesis of example 73, the title [(3S,4R)-4-(4-chloro-phenyl)-1-(1-propionyl-pyrrolidine-3-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from[(3S,4R)-4-(4-chloro-phenyl)-1-(pyrrolidine-3-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using propionyl chloride and was obtained as a light yellow oil.
MS m/e: 502.2 [M+H]+.

Example 171 [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclopropanecarbonyl-pyrrolidine-3-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester F
CI
N
O
N

O O
N
-148-In analogy to the procedure described for the synthesis of example 73, the title [(3S,4R)-4-(4-chloro-phenyl)-1 -(1-cyclopropanecarbonyl-pyrrolidine-3-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from[(3S,4R)-4-(4-chloro-phenyl)-1-(pyrrolidine-3-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using cyclopropanecarbonyl chloride instead of propionyl chloride and was obtained as a colorless oil. MS m/e: 514.4 [M]+.

Example 172 {(3 S,4R)-4-(4-C hloro-phenyl)-1- [ 1-(2-methoxy-acetyl)-pyrrolidine-3-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester F
CI

NO
O
tlzD
N
O
N
O

In analogy to the procedure described for the synthesis of example 73, the title [(3S,4R)-4-(4-chloro-phenyl)-1-(1-(2-methoxy-acetyl)-pyrrolidine-3-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester was prepared from[(3S,4R)-4-(4-chloro-phenyl)-1-(pyrrolidine-3-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester instead of rac-[(3R,4S)-4-(3,4-dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester using methoxyacetyl chloride instead of propionyl chloride and was obtained as a light yellow oil. MS m/e: 518.3 [M+H]+.

Example 173 [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid cyclobutyl ester
-149-O

N
O
N N

In analogy to the procedure described for the synthesis of example 25, the title compound [(3 S,4R)-4-(4-chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid cyclobutyl esterwas prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-5'-carbonitrile instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone using cyclobutanol instead of 2-cyclopropylethanol and was obtained as a colorless foam. MS m/e: 522.4 [M]+.

Example 174 {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid cyclobutyl ester O
N
O
N

O
N
\

In analogy to the procedure described for the synthesis of example 25, the title compound {(3 S,4R)-4-(4-chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid cyclobutyl ester was prepared from [(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidin- l -yl]-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidin-4-yl]-methanone instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone using cyclobutanol instead of 2-cyclopropylethanol and was obtained as a colorless foam. MS m/e: 502.3 [M]+.
-150-Example 175 {(3 S,4R)-4-(4-C hloro-phenyl)-1- [ 1-(1-methyl-cyclop ropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,2,3,3-tetrafluorocyclobutyl ester CI F F

N / -I&---F

N
O
N
\

In analogy to the procedure described for the synthesis of example 25, the title compound {(3 S,4R)-4-(4-chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,2,3,3-tetrafluorocyclobutyl ester was prepared from [(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidin- l -yl]-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidin-4-yl]-methanone instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone using 2,2,3,3-tetrafluorocyclobutano1 instead of 2-cyclopropylethano1 and was obtained as a colorless foam. MS m/e: 574.5 [M]+.

Example 176 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,2,3,3-tetrafluorocyclobutyl ester ~F
N-~ F

N
O
N N

In analogy to the procedure described for the synthesis of example 25, the title compound [(3S ,4R)-4-(4-chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,2,3,3-tetrafluorocyclobutyl ester was prepared from 4-
-151-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-5'-carbonitrile instead of rac- {4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-l-yl}-(1-methyl-cyclopropyl)-methanone using 2,2,3,3-tetrafluorocyclobutanol instead of 2-cyclopropylethanol and was obtained as a colorless foam. MS m/e: 594.4 [M]+.

Example 177 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3,3,3-trifluoro-l-methyl-propyl ester _~ -< O
q --, N F
N

O

N 10 In analogy to the procedure described for the synthesis of example 25, the title compound [(3S ,4R)-4-(4-chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3,3,3-trifluoro-l-methyl-propyl esterwas prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-5'-carbonitrile instead of rac- {4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-piperidin-1-yl}-(1-methyl-cyclopropyl)-methanone using 4,4,4-trifluorobutan-2-ol instead of 2-cyclopropylethanol and was obtained as a colorless foam.
MS m/e: 578.4 [M]+.

Example 178 {(3 S,4R)-4-(4-C hloro-phenyl)-1- [ 1-(1-methyl-cyclop ropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3,3-trifluoro-l-methyl-propyl ester
-152-N
O
N

O
N

O

In analogy to the procedure described for the synthesis of example 25, the title compound {(3 S,4R)-4-(4-chloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3,3-trifluoro-l-methyl-propyl ester was prepared from [(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidin-1-yl]-[1-(1-methyl-cyclopropanecarbonyl)-piperidin-4-yl]-methanone instead of rac-{4-[(3S,4R)-3-(3,4-dichloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-piperidin-1-yl} -(1-methyl-cyclopropyl)-methanone using 4,4,4-trifluorobutan-2-ol instead of 2-cyclopropylethanol and was obtained as a colorless foam. MS m/e: 558.4 [M]+.

Example 179 {(3 S,4R)-4-(4-C hloro-phenyl)-1- [ 1-(tetrahydro-pyran-4-yl)-pyrrolidine-3-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester \ / O
I
F
O
N
O
N
O

To a solution of [(3S,4R)-4-(4-chloro-phenyl)-1-(pyrrolidine-3-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (408 mg, 0.92 mmol) in THE (4 mL) was added under an atmosphere of nitrogen tetrahydro-4H-pyran-4-one (25 mg, 0.25 mmol).
After stirring for 15 min. at ambient temperature sodium triacetoxyborohydride (252 mg, 1.19 mmol) was added and stirred continued for 4 h at ambient temperature. The reaction mixture was diluted with ethyl acetate (10 mL) and washed with an aqeuous solution of sodium carbonate (10 mL).
The aqueous layer was extracted with ethyl acetate (10 mL) and the combined organic layers were dried of sodium sulfate. Concentration and purification by chromatography (Si02, ethyl
-153-acetate:methanol = 100:0 to 80:20) afforded the title compound (115 mg, 24%) as a light yellow oil. MS m/e: 530.3 [M]+.

Example 180 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-methanesulfonyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester 0 Chiral N* CI
N-O IAN
S 0~
0 0 / ` F

A mixture of 20 mg (0.043 mmol) [(3S,4R)-4-(4-Chloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester, 11.2 uL (0.065 mmol) DIPEA and 12.8 mg (0.054 mmol) 2-bromo-5-(methylsulfonyl)pyridine inl mL DMF was heated to 60 C
over night. The mixture was subjected to purification by preparative HPLC on reversed phase eluting with a gradient formed from acetonitrile, water and NEt3 to yield after evaporation of the product containing fractions the title compound as light yellow viscous oil.
MS m/e: 615.3 [M]+.
Example 181 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-trifluoromethyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester 0 Chiral N/\4 CI
N
FI N

F F 0 ` F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-methanesulfonyl-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 180) the title compound was prepared from [(3S,4R)-4-(4-Chloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid
-154-4-fluoro-phenyl ester and 2-bromo-(trifluoromethyl)pyridine (commercially available) as light yellow viscous oil. MS m/e: 605.4 [M]+.

Example 182 [(3 S,4R)-1-(5'-Acetyl-3,4,5,6-tetrahydro-2H- [ 1,2'] bipyridinyl-4-carbonyl)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester 0 Chiral Cl N ~I
N
N-N 0~

0 0 ` F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)- 1 -(5'-methanesulfonyl-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 180) the title compound was prepared from [(3S,4R)-4-(4-Chloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 2-bromo-(trifluoromethyl)pyridine (commercially available) as light yellow viscous oil. MS m/e: 579.4 [M]+.

Exampel 183 [(3 S,4R)-4-(4-C hloro-phenyl)-1-(1-pyrimidin-2-yl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester 0 Chiral N/\4 Cl \`,N
YI N-/N 0~
0 / \ F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-methanesulfonyl-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 180) the title compound was prepared from [(3S,4R)-4-(4-Chloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid
-155-4-fluoro-phenyl ester and 2-bromo-pyrimidine (commercially available) as light yellow viscous oil. MS m/e: 538.4 [M]+.

Example 184 {(3 S,4R)-4-(4-C hloro-phenyl)-1- [ 1-(5-chloro-pyrimidin-2-yl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester 0 Chiral N* Cl N-k/T 0~
Cl 0 0 F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-methanesulfonyl-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 180) the title compound was prepared from [(3S,4R)-4-(4-Chloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 3,6-dichloropyrimidine (commercially available) as light yellow viscous oil. MS m/e: 572.2 [M]+.

Example 185 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(4'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester 0 Chiral N* Cl N\ \ N

N-N 0~

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)- 1 -(5'-methanesulfonyl-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 180) the title compound was prepared from [(3S,4R)-4-(4-Chloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid
-156-4-fluoro-phenyl ester and 2-chloro-5cyano-pyridine (commercially available) as light yellow viscous oil. MS m/e: 562.4 [M]+.

Example 186 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(3'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester 0 Chiral II N /' Cl N
N-/N 0~

0 / \ F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-methanesulfonyl-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 180) the title compound was prepared from [(3S,4R)-4-(4-Chloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 2-chloronicotinonitrile (commercially available) as light yellow viscous oil. MS m/e: 562.3 [M]+.

Example 187 {(3 S,4R)-4-(4-C hloro-phenyl)-1- [ 1-(6-cyano-pyrazin-2-yl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester 0 Chiral N D CI

N
~
N ,N-N 0~
0-&F
N

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-methanesulfonyl-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 180) the title compound was prepared from [(3S,4R)-4-(4-Chloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid
-157-4-fluoro-phenyl ester and 6-cyano-2-chloropyrazine (commercially available) as light yellow viscous oil. MS m/e: 563.3 [M]+.

Example 188 [(3S,4R)-4-(4-Chloro-phenyl)-1-(3'-chloro-5'-trifluoromethyl-3,4,5,6-tetrahydro-2H-[1,2'] bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester 0 Chiral ~ CI
CI N

F N-F ~ i~

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-methanesulfonyl-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 180) the title compound was prepared from [(3S,4R)-4-(4-Chloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 2,3,-dichloro-5-(trifluoromethyl)pyridine (commercially available) as light yellow viscous oil. MS m/e: 639.3 [M]+.

Example 189 [(3S,4R)-4-(4-Chloro-phenyl)-1-(6'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester 0 Chiral ~ CI
N ' N

N 0~

0-&F
N

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-methanesulfonyl-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 180) the title compound was prepared from [(3S,4R)-4-(4-Chloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid
-158-4-fluoro-phenyl ester and 2-chloro-6-cyanopyridine (commercially available) as light yellow viscous oil. MS m/e: 562.3 [M]+.

Example 190 {(3 S,4R)-4-(4-C hloro-phenyl)-1- [ 1-(5-methoxy-pyrimidin-2-yl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester 0 Chiral ~ Cl N~I
N N
Y N-0 \N 0~
0 / \ F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-methanesulfonyl-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 180) the title compound was prepared from [(3S,4R)-4-(4-Chloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 2-chloro-5-methoxy-pyrimidine (commercially available) as light brown viscous oil. MS m/e: 568.4 [M]+.

Example 191 [(3 S,4R)-4-(4-C hloro-phenyl)-1-(1-pyrimidin-4-yl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester 0 Chiral CI
N ' N
(y N-NvN 0~
0 \ F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-methanesulfonyl-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 180) the title compound was prepared from [(3S,4R)-4-(4-Chloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid
-159-4-fluoro-phenyl ester and 2-chloro-pyrimidine (commercially available) as light yellow viscous oil. MS m/e: 538.4 [M]+.

Example 192 {(3 S,4R)-4-(4-C hloro-phenyl)-1- [ 1-(5-cyano-pyrimidin-2-yl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester 0 Chiral N ~' CI
N N
"Y -N-~N

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-methanesulfonyl-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 180) the title compound was prepared from [(3S,4R)-4-(4-Chloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 2-chloropyrimidine-5-carbonitrile (commercially available) as light yellow waxy solid. MS m/e: 563.4 [M]+.

Example 193 {(3 S,4R)-4-(4-C hloro-phenyl)-1- [ 1-(5-cyano-pyrazin-2-yl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester 0 Chiral I
N C
~~4 N N
N-N N 0 0/\ F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-methanesulfonyl-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 180) the title compound was prepared from [(3S,4R)-4-(4-Chloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid
-160-4-fluoro-phenyl ester and 5-bromopyrazine-2-carbonitrile (commercially available) as light yellow viscous oil. MS m/e: 563.3 [M]+.

Example 194 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-methyl-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester 0 Chiral Cl N
/I
N-N 0~ /\

F
A mixture of 26.7 mg (0.085 mmo1)[(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester, 15 mg (0.068 mmol) 1-(5-methyl-2-pyridinyl)-4-piperidinecarboxylic acid (commercially available), 31 mg (0.082 mmol) HATU
and 70uL
(0.409 mmol) DIPEA in 2 mL DMF was shaken for 1 h at room temperature. The mixture was subjected to purification by preparative HPLC on reversed phase eluting with a gradient formed from acetonitrile, water and NEt3 to yield after evaporation of the product containing fractions the title compound as off-white solid. MS m/e: 551.4 [M]+.

Example 195 [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-fluoro-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester 0 Chiral CI
N
N-\ N 0~
F 0 / \ F

a) 5'-Fluoro-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carboxylic acid ethyl ester F N
N
-161-A mixture of 3.4 g (20 mmol) 2-bromo-5-fluoropyridine, 4.61 g (29 mmol) ethyl isonipecotate and 3.79 g (29 mmol) DIPEA in 5 mL NMP was heated for 15 min to 170 C and 60 min to 200 C. After cooling to room temperature water was added and the mixture was extracted with ethyl acetate and heptane. The combined organic layers were washed with brine, dried with Na2SO4, filtered and evaporated to dryness. The residue was purified by column chromatography on silica eluting with a gradient formed from heptane and ethyl acetate. The product containing fractions were evaporated to yield 1.5 g (30 %) of the title compound as light yellow oil. MS m/e: 253.3 [M]+.

b) 5'-Fluoro-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carboxylic acid F axc/I N\` )--~( O

A mixture of 4 g (16 mmol) 5'-Fluoro-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carboxylic acid ethyl ester and 0.832 g (20 mmol) LiOH*H20 in 50 mL THF, 50 mL water and 5 mL
methanol was stirred for 2 h at 20 C. Acetic acid was added to pH 6 and water and ethyl acetate. The mixture was extracted with ethyl acetate and the combined organic layers were washed with brine, dried with Na2SO4, filtered and evaporated to dryness. The residue was purified by column chromatography on silica eluting with a gradient formed from heptane and ethyl acetate. The product containing fractions were evaporated to yield 3.1 g (87 %) of the title compound as off-white solid. MS m/e: 223.1 [M-H].

c) [(3S,4R4-(4-Chloro-phenyl1-(5'-fluoro-3,4,5,6-tetrahydro-2H-[
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-methyl-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 194) the title compound was prepared from [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 5'-Fluoro-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carboxylic acid as off-white solid.
MS m/e: 555.2 [M]+.
Example 196 [(3 S,4R)-1-(5'-Carbamoyl-3,4,5,6-tetrahydro-2H- [ 1,2'] bipyridinyl-4-carbonyl)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester
-162-0 Chiral N"\4 CI
N
~I N-HNN 0~ o F 2 / 1 In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-methyl-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 194) the title compound was prepared from [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 5'-Carbamoyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carboxylic acid as light brown viscous oil. MS m/e:
580.4 [M]+.

Example 197 {(3 S,4R)-4-(4-C hloro-phenyl)-1- [ 1-(6-methoxy-pyridazin-3-yl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester 0 Chiral Cl /
IN-\ N' N 0~
~ 0 F

a) 1-(6-Methoxy-pyridazin-3-yl)-piperidine-4-carboxylic acid ethyl ester N

A mixture of 4.33 g (30 mmol) 3-chloro-6-methoxypyridazine, 5.66 g (36 mmol) ethyl isonipecotate, 3.46 g (36 mmol) sodium tert.-butylate, 0.56 g (0.9 mmol) BINAP
amd 0.55g (0.5 mmol) Pd2dba3 in 60 mL toluene was heated to 100 C for 90 min. After cooling to room temperature water was added and the mixture was extracted with ethyl acetate.
The combined organic layers were washed with brine, dried with Na2SO4, filtered and evaporated to dryness.
The residue was purified by column chromatography on silica eluting with a gradient formed
-163-from heptane and ethyl acetate. The product containing fractions were evaporated to yield 3.2 g (34 %) of the title compound as orange solid. MS m/e: 266.3 [M+H]+.

b) 1-(6-Methoxy-pyridazin-3-yl)-piperidine-4-carboxylic acid In analogy to the procedure described for the synthesis of 5'-Fluoro-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carboxylic acid the title compound was prepared from 1-(6-Methoxy-pyridazin-3-yl)-piperidine-4-carboxylic acid ethyl ester through saponification with LiOH*H20.
The title compound was isolated as orange solid. MS m/e: 236.2 [M-H].

c) {(3S,4R)-4-(4-Chloro-phenyl[I-(6-methoxy-pyridazin-3-yl)-piperidine-4-carbonyll-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-methyl-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 194) the title compound was prepared from [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 1-(6-Methoxy-pyridazin-3-yl)-piperidine-4-carboxylic acid as light yellow viscous oil. MS
m/e: 568.5 [M+H]+.
Example 198 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(6'-cyano-3,4,5,6-tetrahydro-2H- [ 1,3']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester 0 Chiral a N
N-( N 0 F

a) 6'-Cyano-3,4,5,6-tetrahydro-2H-[1,3']bipyridinyl-4-carboxylic acid ethyl ester ~ //O O
N ~~// ~`
-164-In anlogy to the procedure described for the synthesis of 1-(6-Methoxy-pyridazin-3-yl)-piperidine-4-carboxylic acid ethyl ester the title compound was prepared from 5-bromo-cyanopyridine and ethyl isonipecotate as yellow viscous oil. MS m/e: 260.3 [M+H]+.

b) 6'-Cyano-3,4,5,6-tetrahydro-2H-[1,3']bipyridinyl-4-carboxylic acid N N
~ ~`( N ~/ O

In analogy to the procedure described for the synthesis of 5'-Fluoro-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carboxylic acid the title compound was prepared from 6'-Cyano-3,4,5,6-tetrahydro-2H-[1,3']bipyridinyl-4-carboxylic acid ethyl ester through saponification with LiOH*H20. The title compound was isolated as yellow solid. MS m/e: 230 [M-H].

c) [(3S,4R4-(4-Chloro-phenyl1-(6'-cyano-3,4,5,6-tetrahydro-2H-[
1,3']bipyridinyl-4-carbonyl)-pyrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-methyl-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 194) the title compound was prepared from [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 6'-Cyano-3,4,5,6-tetrahydro-2H-[1,3']bipyridinyl-4-carboxylic acid as light yellow viscous oil. MS m/e:
562.3 [M+H]+.

Example 199 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-chloro-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester 0 Chiral N ~' CI
N

Cl 0' In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-methyl-3,4,5,6-tetrahydro-2H-[ 1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 194) the title compound was prepared from [(3S,4R)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 5'-Chloro-
-165-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carboxylic acid as light yellow viscous oil. MS m/e:
571.3 [M+H]+.

Example 200 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid phenyl ester 0 Chiral N/\4 CI

N
N-N 0~ N

A mixture of 25 mg (0.059 mmol) 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-5'-carbonitrile, 11.5 mg (0.074 mmol) phenyl chloroformate and 11.4 mg (0.088 mmol) DIPEA in 2 mL DCM was stirred for 15 min at 5 C
and over night at room temperature. Isolute was added and the mixture was evaporated to dryness and the residue was subjected to column chromatography on silica eluting with a gradient formed from DCM, methanol and NH3. The product containing fractions were evaporated to yield 27 mg (84 %) of the title compound aslight yellow viscous oil. MS m/e:
544.4 [M+H]+.

Example 201 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methoxy-phenyl ester 0 Chiral ~ CI
N ~I

N

-N 0 ` \

In analogy to the procedure described for the synthesis of [(3 S,4R)-4-(4-Chloro-phenyl)- 1 -(5'-cyan-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid phenyl ester the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-
-166-methylamino-pyrro lidine-l-carbonyl]-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-5'-carbonitrile and 4-methoxyphenyl chloroformat as light yellow viscous oil. MS m/e: 574.5 [M+H]+.

Example 202 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid p-tolyl ester eo-01-0 Chiral ZEN 0~

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid phenyl ester the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-5'-carbonitrile and p-tolyl chloroformat as light yellow viscous oil. MS m/e: 558.4 [M+H]+.

Example 203 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-chloro-phenyl ester 0 Chiral N

I

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid phenyl ester the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrro lidine-l-carbonyl]-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-5'-carbonitrile and 4-chlorophenyl chloroformat as light yellow viscous oil. MS m/e: 578.4 [M+H]+.
-167-Example 204 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid cyclopentyl ester CI Chiral N N N

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid phenyl ester the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrro lidine-l-carbonyl]-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-5'-carbonitrile and cyclopentyl chloroformat as colourless viscous oil. MS m/e: 536.3 [M+H]+.

Example 205 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,2-dimethyl-propyl ester CI Chiral ~I -N

"'N

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyan-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid phenyl ester the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrro lidine-l-carbonyl]-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-5'-carbonitrile and neopentyl chloroformat as colourless viscous oil. MS m/e: 538.4 [M+H]+.

Example 206 [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-methoxy-ethyl ester
-168-CI Chiral N, N /J
~0 In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid phenyl ester the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-5'-carbonitrile and chloroformic acid 2-methoxyethyl ester as colourless viscous oil. MS m/e:
526.4 [M+H]+.
Example 207 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester 0 Chiral Aic1 :/N F

F

A solution of 243 mg (1.5 mmol) 4-hydroxybenzotrifluoride in 3 mL THE was treated with 1 mL
(1.6 mmol) n-Buli (1.6M in hexane) at -70 C and stirred for 15 min. 156 mg (0.526 mmol) triphosgene in 3 mL THE was added slowly and allowed to warm to room temperature. This mixture was added to a solution of 60 mg (0.142 mmol) 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine-l-carbonyl]-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-5'-carbonitrile and 22.8 mg (0.177 mmol) DIPEA in 2 mL THE at 0 C and stirred for 15 min. Isolute was added and the mixture was evapotaed to dryness and the residue was subjected to column chromatography on silica eluting with a gradient formed from DCM, methanol and NH3 and subsequently to purification by preparative HPLC on reversed phase. The product containing fractions were evaporated to yield 30 mg (35 %) of the title compound as light yellow viscous oil.
MS m/e: 612.3 [M+H]+.
-169-Example 208 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,4-difluoro-phenyl ester G Chiral ,,N

tp-F
F

In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 2,4-difluorophenol as light yellow viscous oil. MS m/e:
580.4 [M+H]+.

Example 209 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3,4-difluoro-phenyl ester 0 Chiral CI
N
N

/N 0~

N/ O\ F
F

In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 3,4-difluorophenol as light yellow viscous oil. MS m/e:
580.3 [M+H]+.
-170-Example 210 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(6'-cyano-3,4,5,6-tetrahydro-2H- [ 1,3']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3,5-difluoro-phenyl ester 0 Chiral a N
N-/ aN-N"

F

F

In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 3,5-difluorophenol as colourless viscous oil. MS m/e: 580.3 [M+H]+.

Example 211 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,3-difluoro-phenyl ester 0 Chiral ~ CI
N
IN-Np' F 0 F -b /
In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 2,4-difluorophenol as colourless viscous oil. MS m/e: 580.4 [M+H]+.
-171-Example 212 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-fluoro-phenyl ester 0 Chiral N
N-N 0~

F

In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 2-fluorophenol as colourless viscous oil. MS m/e: 562.3 [M+H]+.

Example 213 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-chloro-phenyl ester 0 Chiral Cl I\
~N

Cl In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 2-chlorphenol as colourless viscous oil.
MS m/e: 578.3 [M+H]+.
-172-Example 214 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3-fluoro-propyl ester 0 Chiral I N-F

In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 3-fluoropropan-lol as colourless viscous oil. MS m/e: 528.3 [M+H]+.

Example 215 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid cyclopropylmethyl ester CI Chiral "'N

0 ~0 In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and cyclopropyl-methanol as light yellow viscous oil. MS m/e:
522.4 [M+H]+.
-173-Example 216 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3-methoxy-propyl ester a Chlral 0 ~0 In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 3-methoxy-propan-l-ol as colourless yellow viscous oil. MS
m/e: 540.4 [M+H]+.

Example 217 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1-methyl-cyclopropylmethyl ester CI Chiral N, N N
N "' N

0 ~0 0 I ~

In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and (1-methyl-cyclopropyl)-methanol as colourless yellow viscous oil. MS m/e: 536.4 [M+H]+.
-174-Example 218 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3-methyl-oxetan-3-ylmethyl ester a Chiral `N
0 ~0 0 ~0 In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and (3-methyl-oxetan-3-yl)-methanol as colourless yellow viscous oil. MS m/e: 552.5 [M+H]+.

Example 219 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-cyclopropyl-ethyl ester CI Chiral N, /

N N
N " N

0 0 ~0 In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 2-cyclopropyl-ethanol as colourless viscous oil. MS m/e:
536.4 [M+H]+.
-175-Example 220 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methyl-cyclohexyl ester CI Ciral N

N N
N " N

0 o In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 4-methylcyclohexanol as colourless viscous oil. MS m/e:
564.5 [M+H]+.

Example 221 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methyl-cyclohexyl ester C Clral N

N N
N " N

In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 4-methylcyclohexanol as colourless viscous oil. MS m/e:
564.4 [M+H]+.
-176-Example 222 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-methoxy-l-methyl-ethyl ester cc N N
N "'N
0 , ~0 In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 1-methoxy-propan-2-ol as colourless viscous oil. MS m/e:
540.4 [M+H]+.

Example 223 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-fluoro-ethyl ester CI Chiral N,\

aNN
N " N

0 ~0 F

In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 2-fluoro-ethanol as yellow viscous oil.
MS m/e: 514.4 [M+H]+.
-177-Example 224 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methanesulfonyl-phenyl ester 0 01 Chiral S N iN 1 II

In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 4-methanesulfonyl-phenol as yellow viscous oil. MS m/e:
622.4 [M+H]+.

Example 225 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3-cyano-phenyl ester 0 aChiral N
N
N-/N 0~

N

In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 3-hydroxy-benzonitrile as colourless viscous oil. MS m/e:
569.4 [M+H]+.
-178-Example 226 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1-(4-fluoro-phenyl)-ethyl ester N
N
~
IN N-F

In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 1-(4-fluoro-phenyl)-ethanol as colourless viscous oil. MS
m/e: 590.4 [M+H]+.

Example 227 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-fluoro-l-fluoromethyl-ethyl ester 0 aChiral N ~ I
N
N-/N 0~

F
In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 1,3-Difluoro-propan-2-ol as colourless viscous oil. MS m/e:
546.3 [M+H]+.
-179-Example 228 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-cyano-phenyl ester 0 OI Chiral \N

In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 4-hydroxy-benzonitrile as colourless viscous oil. MS m/e:
569.4 [M+H]+.

Example 229 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid o-tolyl ester 0 OUral N ~j ~ N
N
/N 0~

In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 2-methyl-phenol as colourless viscous oil. MS m/e: 558.4 [M+H]+.
-180-Example 230 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid m-tolyl ester 0 ^1C1 Chiral N
N
N
,N C -N" \ /

In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 3-methyl-phenol as colourless viscous oil. MS m/e: 558.4 [M+H]+.

Example 231 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid tetrahydro-pyran-4-ylmethyl ester 0 aChiral N ~ I
N
IN

In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and (tetrahydro-pyran-4-yl)-methanol as colourless viscous oil.
MS m/e: 566.5 [M+H]+.
-181-Example 232 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid tetrahydro-furan-2-ylmethyl ester N ~
N
~
~ I N

bo In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and (tetrahydro-furan-2-yl)-methanol as colourless viscous oil.
MS m/e: 552.5 [M+H]+.

Example 233 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid tetrahydro-furan-3-ylmethyl ester N ~ I
N
IN I ~N
~N 0 In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and (tetrahydro-furan-3-yl)-methanol as colourless viscous oil.
MS m/e: 552.5 [M+H]+.
-182-Example 234 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1,1-dimethyl-propyl ester 0 OlChiral N
~ N
N-/N 0~
//

In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 2-methyl-butan-2-ol as colourless viscous oil. MS m/e: 538.4 [M+H]+.

Example 235 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,2,2-trifluoro-1,1-dimethyl-ethyl ester 0 ClChiral N ~ I
N
'N-/N õ_/

F~
F

In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 1,1,1-trifluoro-2-methyl-propan-2-ol as colourless viscous oil. MS m/e: 578.4 [M+H]+.
-183-Example 236 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1-(4-fluoro-phenyl)-propyl ester Ci N
No"' IN IN-N o \
F -C

In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 1-(4-fluoro-phenyl)-propan-l-ol as light yellow viscous oil.
MS m/e: 604.4 [M+H]+.

Example 237 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-cyano-2-fluoro-phenyl ester 0 Chiral CI
N
P N

F

In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 3-fluoro-4-hydroxy-benzonitrile as colourless viscous oil.
MS m/e: 587.2 [M+H]+.
-184-Example 238 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methoxy-cyclohexyl ester 0 Chiral CI
N 0~
:IN

In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 4-methoxy-cyclohexanol as colourless viscous oil. MS m/e:
580.4 [M+H]+.

Example 239 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid cyclopropyl-(4-fluoro-phenyl)-methyl ester Ci QN/

N-N 0~

\
F -C

In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and cyclopropyl-(4-fluoro-phenyl)-methanol as colourless viscous oil. MS m/e: 616.4 [M+H]+.
-185-Example 240 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methyl-l-trifluoromethyl-cyclohexyl ester o Chiral N \ / CI
N
/ I iN
N/ o F o F
F

In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 4-methyl-l-trifluoromethyl-cyclohexanol as light yellow viscous oil. MS m/e: 632.5 [M+H]+.

Example 241 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1,4-dimethyl-cyclohexyl ester 0 Chiral V CI
N
N N

In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 1,4-dimethyl-cyclohexanol as light yellow viscous oil. MS
m/e: 578.4 [M+H]+.
-186-Example 242 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1,4-dimethyl-cyclohexyl ester 0 Chiral CI
N
~ N
~N 0 NX"

In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 1,4-dimethyl-cyclohexanol as colourless viscous oil. MS
m/e: 578.4 [M+H]+.

Example 243 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1-methyl-cyclopentyl ester o Chiral N
N

In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 1-methyl-cyclopentanol as colourless viscous oil. MS m/e:
550.4 [M+H]+.
-187-Example 244 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 5-chloro-pyridin-2-yl ester 0 Chiral N"\4 CI

\ N
N
0 ~N-j iN 0~ N/
CI
In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 5-Chloro-pyridin-2-ol as colourless viscous oil. MS m/e:
579.3 [M+H]+.

Example 245 [(3 S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-cyano-3-fluoro-phenyl ester 0 Chiral O -C N
F

In anolgy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester (example 207) the title compound was prepared from 4-[(3R,4S)-3-(4-chloro-phenyl)-4-methylamino-pyrrolidine- l -carbonyl]-3,4,5,6-tetrahydro-[1,2']bipyridinyl-5'-carbonitrile and 2-fluoro-4-hydroxy-benzonitrile as colourless viscous oil.
MS m/e: 587.2 [M+H]+.
-188-Example 246 [ (3S,4R)-1-(1-Acetyl-piperidine-4-carbonyl)-4-(4-chloro-phenyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester IOI Chiral ^ }~ ~ / SCI
IrJy _N1~!~/'~~~
\
11 if N-O O =<
O

F

A mixture of 94 mg (0.204 mmol) 4-fluorophenyl (3S,4R)-4-(4-chlorophenyl)-1-(piperidine-4-carbonyl)pyrrolidin-3-yl(methyl)carbamate and 132 mg (1.02 mmol) DIPEA in 5 mL
DCM was added 24.1 mg (0.3 mmol) acetyl chloride and stirred for 5 h. Methanol was added and stirred over night. The reaction mixture was extracted with sat NaHCO3 and the aqueous layer extracted with DCM. The combined organic layers were dried with Na2SO4, filtered off and concentrated in vacuum. The residue was subjected to purification by column chromatography on silica eluting with a gradient formed from DCM, methanol and NH3aq.. The product containing fractions were evaporated to yield 53 mg (52 %) of the title compound as light yello foam. MS
m/e: 502.2 [M+H]+.

Example 247 [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester ^ 0 Chiral I
r Y 'N CI
N
N-o O-~

F

A mixture of 27.6 mg (0.06 mmol) 4-fluorophenyl (3S,4R)-4-(4-chlorophenyl)-1-(piperidine-4-carbonyl)pyrrolidin-3-yl(methyl)carbamate, 0.52 mL (0.072 mmol) HATU (0.136 M
in DMF), 12 mg (0.072 mmol) cyclobutanecarboxylic acid and 46.5 mg (0.36 mmol) DIPEA in 1.5 mL DMF
was shaken at room temperature over night. The mixture was subjected to preparative HPLC
chromatography on reversed phase eluting with a gradient formed from acetonitrile, water and NEt3. The product containing fractions were evaporated to yield 12.5 mg (39 %) of the title compounds as off-white solid. MS m/e: 542.3 [M+H]+.
-189-Example 248 { (3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(3-methyl-oxetane-3-carbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester 0 Chiral O\~ /'N N \ / CI

~/ O O
N
\ O

F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from 4-fluorophenyl (3S,4R)-4-(4-chlorophenyl)-1-(piperidine-4-carbonyl)pyrrolidin-3-yl(methyl)carbamate and 3-methyloxetane-3-carboxylic acid. MS m/e: 558.3 [M+H]+.

Example 249 { (3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(3-fluoro-cyclobutanecarbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester ^ }IOI~ Chiral F Y 'N \ / Cl ~N
O O-~ N
O
F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from 4-fluorophenyl (3S,4R)-4-(4-chlorophenyl)-1-(piperidine-4-carbonyl)pyrrolidin-3-yl(methyl)carbamate and 3-fluorocyclobutanecarboxylic acid. MS m/e: 560.2 [M+H]
Example 250 {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(3,3-difluoro-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl Ester
-190-0 Chiral F\
\v~ u N
O N-o F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from 4-fluorophenyl (3S,4R)-4-(4-chlorophenyl)-1-(piperidine-4-carbonyl)pyrrolidin-3-yl(methyl)carbamate and 3,3-difluorocyclobutanecarboxylic acid. MS m/e: 578.3 [M+H]
Example 251 { (3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(3-methoxy-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester 0 Chiral /O N N \ / CI

~I If N-O O-~
\
F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from 4-fluorophenyl (3S,4R)-4-(4-chlorophenyl)-1-(piperidine-4-carbonyl)pyrrolidin-3-yl(methyl)carbamate and 3-methoxycyclobutanecarboxylic acid. MS m/e: 572.2 [M+H]
Example 252 { (3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(1-trifluoromethyl-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester ^ }IOI~ Chiral l Y `N \ / CI
INJI

F N-F FO O
O
F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from 4-fluorophenyl (3S,4R)-4-(4-
-191-chlorophenyl)-1-(piperidine-4-carbonyl)pyrrolidin-3-yl(methyl)carbamate and 1-(trifluoromethyl)cyclobutanecarboxylic acid. MS m/e: 572.2 [M+H]

Example 253 { (3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(2-cyano-acetyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester 0 Chiral N ~ ~ CI
N*~
N-o O-~

F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from 4-fluorophenyl (3S,4R)-4-(4-chlorophenyl)-1-(piperidine-4-carbonyl)pyrrolidin-3-yl(methyl)carbamate and 2-cyanoacetic acid. MS m/e: 572.2 [M+H] +.

Example 254 { (3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(1-cyano-cyclopropanecarbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester O Chiral N CI
N
N-II
N O O-\
F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from 4-fluorophenyl (3S,4R)-4-(4-chlorophenyl)-1-(piperidine-4-carbonyl)pyrrolidin-3-yl(methyl)carbamate and 1-cyanocyclopropanecarboxylic acid. MS m/e: 553.3 [M+H]
Example 255 { (3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(1-trifluoromethyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester
-192-0 Chiral NNN Cl F N-O
F F
O
F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from 4-fluorophenyl (3S,4R)-4-(4-chlorophenyl)-1-(piperidine-4-carbonyl)pyrrolidin-3-yl(methyl)carbamate and 1-(trifluoromethyl) cyclopropanecarboxylic acid. MS m/e: 596.3 [M+H]
Example 256 { (3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(2,2-difluoro-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester O
N N \ / Cl F 11If 'N_ O O~
O
F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from 4-fluorophenyl (3S,4R)-4-(4-chlorophenyl)-1-(piperidine-4-carbonyl)pyrrolidin-3-yl(methyl)carbamate and 2,2-difluorocyclopropanecarboxylic acid. MS m/e: 564.3 [M+H]
Example 257 { (3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(tetrahydro-pyran-4-carbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester O Chiral O g'N Cl N -"' TTIIOIIff N

F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from 4-fluorophenyl (3S,4R)-4-(4-
-193-chlorophenyl)-1-(piperidine-4-carbonyl)pyrrolidin-3-yl(methyl)carbamate and tetrahydro-2H-pyran-4-carboxylic acid. MS m/e: 572.2 [M+H]+.

Example 258 { (3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(2,2-dimethyl-tetrahydro-pyran-4-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester xI00II
IO^lI ~N \ / Cl llO ~N
O
\ O
F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from 4-fluorophenyl (3S,4R)-4-(4-chlorophenyl)-1-(piperidine-4-carbonyl)pyrrolidin-3-yl(methyl)c rbamate and 2,2-dimethyltetrahydro-2H-pyran-4-carboxylic acid. MS m/e: 600.3 [M+H]
Example 259 { (3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(1-methoxymethyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester O Chiral O
JI N \ / CI
I x /N

O O~N
\
F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from 4-fluorophenyl (3S,4R)-4-(4-chlorophenyl)-1-(piperidine-4-carbonyl)pyrrolidin-3-yl(methyl)carbamate and 1-(methoxymethyl)cyclopropanecarboxylic acid. MS m/e: 572.2 [M+H]
Example 260 { (3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(2,2-dimethyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester
-194-N \ / CI
O O-N
\ O
F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from 4-fluorophenyl (3S,4R)-4-(4-chlorophenyl)-1-(piperidine-4-carbonyl)pyrrolidin-3-yl(methyl)carbamate and 2,2-dimethylcyclopropanecarboxylic acid. MS m/e: 556.2 [M+H]
Example 261 { (3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(5-trifluoromethyl-pyridine-2-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester F 0 Chiral F
F N / CI
I
N

O O_N
\ O
F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from 4-fluorophenyl (3S,4R)-4-(4-chlorophenyl)-1-(piperidine-4-carbonyl)pyrrolidin-3-yl(methyl)carbamate and 5-(trifluoromethyl)picolinic acid. MS m/e: 633.4 [M+H]+.
Example 262 { (3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(5-fluoro-pyridine-2-carbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester ^^ xI0II Chiral F ~ N N Cl I N
N-O O-~
O

F
-195-In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from 4-fluorophenyl (3S,4R)-4-(4-chlorophenyl)-1-(piperidine-4-carbonyl)pyrrolidin-3-yl(methyl)carbamate and 5-fluoropicolinic acid. MS m/e: 583.2 [M+H] +.

Example 263 { (3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(6-oxo-piperidine-3-carbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester O NN / CI
0 llf -N
N '-O
O

F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from 4-fluorophenyl (3S,4R)-4-(4-chlorophenyl)-1-(piperidine-4-carbonyl)pyrrolidin-3-yl(methyl)carbamate and 6-oxopiperidine-3-carboxylic acid. MS m/e: 585.3 [M+H]+.

Example 264 { (3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-(1-isopropyl-6-oxo-piperidine-3-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester N \ / CI
YN~N
N-F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from 4-fluorophenyl (3S,4R)-4-(4-chlorophenyl)-1-(piperidine-4-carbonyl)pyrrolidin-3-yl(methyl)carbamate and 1-isopropyl-6-oxopiperidine-3-carboxylic acid. MS m/e: 627.4 [M+H]+.
-196-Example 265 [ (3S,4R)-1-(1-Cyclobutanecarbonyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester CI Chiral N CI

~I If a) [(3S,4R)-1-Benzyl-4-(3,4-dichloro-phenyl)-pvrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester CI
N cI
N-O
0 \ / F

A mixture of 3.35 g (10 mmol) (3S,4R)-1-benzyl-4-(3,4-dichlorophenyl)-N-methylpyrrolidin-3-amine (example 159, h), 1.61 g (12.5 mmol) DIPEA and 1.92 g (11 mmol) 4-fluorophenyl chloroformate in 50 mL DCM at 0-5 C was stirred at 0 C for 1 h and evaporated to dryness.
The residue was subjected to column chromatography on silica eluting with a gradient formed from heptane and t-butyl-methylether to yield after evaporation of the product containing fractions 3.07 g (65 %) of the title compound as colourless viscous oil. MS
m/e: 473.1 [M+H]+.

b) [(3S,4R)-4-(3,4-Dichloro-phenyl)-pvrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester CI
HN cI
N-O
0 \ / F

In analogy to the procedure described for the synthesis of rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester (example 1, e) the title compound was
-197-prepared from [(3S,4R)-1-Benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and isolated as brown foam. MS m/e: 383.2 [M+H]+.

c) [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(piperidine-4-carbonyl)-pvrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester O
N ci HN
N-O
O F

In analogy to the procedure described for the synthesis of rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -methyl-carbamic acid tert-butyl ester (example 1, f) the Boc-protected title compound was prepared from [(3S,4R)-4-(3,4-Dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and N-Boc-isonipecotic acid. The title compound was subsequently isolated after acidic cleavage of the Boc group with TFA. MS m/e: 494.2 [M+H]+.

d) [(3S,4R)-1-(1-Cyclobutanecarbonyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and cyclobutanecarboxylic acid. MS m/e: 576.3 [M+H] +.

Example 266 {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(3-methyl-oxetane-3-carbonyl)-piperidine-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester Cl Chiral O
N / CI
O~N
N -O O=< O \ / F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(3,4-Dichloro-
-198-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 3-methyloxetane-3-carboxylic acid. MS m/e: 592.3 [M+H]+.

Example 267 { (3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(3-fluoro-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester Cl Chiral O
F N / CI
N
N-O O=<
O \ / F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 3-fluorocyclobutanecarboxylic acid. MS m/e: 594.3 [M+H]+.

Example 268 { (3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(3,3-difluoro-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester Cl Chiral O

~ / / Cl F N \
N
F I I
O O
O F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 3,3-difluorocyclobutanecarboxylic acid. MS m/e: 612.2 [M+H]+.
Example 269 { (3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(3-methoxy-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester
-199-CI Chiral IOI
^ x / Cl N
"13Y N-N \
O O
O \ / F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 3-methoxycyclobutanecarboxylic acid. MS m/e: 606.3 [M+H]

Example 270 { (3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-trifluoromethyl-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester Cl Chiral IOI N /
^-x CI
o N
F IN
F FO O~
O F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 1-(trifluoromethyl)cyclobutanecarboxylic acid. MS m/e: 644.2 [M+H]
Example 271 [ (3S,4R)-1- [ 1-(2-Cyano-acetyl)-piperidine-4-carbonyl] -4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester CI Chiral O
N CI
I N-N/
O O
O -<D,-F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(3,4-Dichloro-
-200-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 2-cyanoacetic acid. MS m/e: 561.1 [M+H]+.

Example 272 [ (3S,4R)-1- [ 1-(1-Cyano-cyclopropanecarbonyl)-piperidine-4-carbonyl] -4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester Cl Chiral ^ x / CI
IrJY N ~
IIO
N O
0 _ F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 1-cyanocyclopropanecarboxylic acid. MS m/e: 587.1 [M+H]

Example 273 { (3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-trifluoromethyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester Cl Chiral IOI
CI
/N
F IY 'N
F FO O-~
O F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 1-(trifluoromethyl)cyclopropanecarboxylic acid. MS m/e: 630.4 [M+H]
Example 274 { (3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(2,2-difluoro-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester
-201-CI
O
/ CI
//~~ N
FN

O O
O \ / F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 2,2-difluorocyclopropanecarboxylic acid. MS m/e: 598.1 [M+H]+.

Example 275 { (3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(tetrahydro-pyran-4-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester Cl Chiral O
/ CI

Imo"/I I N N
~N-O
O O F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and tetrahydro-2H-pyran-4-carboxylic acid. MS m/e: 606.2 [M+H]+.
Example 276 { (3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(2,2-dimethyl-tetrahydro-pyran-4-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester Cl O
~/ CI
N-o O =<
O \ / F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(3,4-Dichloro-
-202-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 2,2-dimethyltetrahydro-2H-pyran-4-carboxylic acid. MS m/e: 634.2 [M+H]+.

Example 277 { (3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-methoxymethyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester Cl Chiral O
O N / CI

O \ / F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 1-(methoxymethyl)cyclopropanecarboxylic acid. MS m/e: 606.3 [M+H]+.

Example 278 { (3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(2,2-dimethyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester Cl O
- / CI
N

O=( O F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 2,2-dimethylcyclopropanecarboxylic acid. MS m/e: 590.2 [M+H]
Example 279 { (3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(5-trifluoromethyl-pyridine-2-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester
-203-F
~~~ CI Chiral F,j I I J
/ CI
F' II N ~r N
N-o O \
/ O F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 5-(trifluoromethyl)picolinic acid. MS m/e: 667.2 [M+H]+.

Example 280 { (3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(5-fluoro-pyridine-2-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester Cl Chiral O
F / CI
N
N
N-O O=<O \ / F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 5-fluoropicolinic acid. MS m/e: 617.3 [M+H]+.

Example 281 { (3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(6-oxo-piperidine-3-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester Cl O
IrJyI_N &
HN N
N-O O~
O i F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(3,4-Dichloro-
-204-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 6-oxopiperidine-3-carboxylic acid. MS m/e: 619.4 [M+H]+.

Example 282 { (3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-isopropyl-6-oxo-piperidine-3-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester C

eo-&Ci OO N O O

O \ / F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 1-isopropyl-6-oxopiperidine-3-carboxylic acid. MS m/e: 661.3 [M+H]+.

Example 283 [ (3S,4R)-1-(1-Acetyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester C1 C1 Chiral /
O F
N N
, 0 /~-O
O O

In analogy to the procedure described for the synthesis of [(3S,4R)-1-(1-Acetyl-piperidine-4-carbonyl)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 246) the title compound was prepared from [(3 S,4R)-4-(3,4-Dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and acetyl chloride. MS m/e: 536.1 [M+H] +.

Example 284 [ (3S,4R)-1- [ 1-(2-Cyano-acetyl)-piperidine-4-carbonyl] -4-(4-fluoro-phenyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester
-205-0 Chiral F
N
N -O=<
N
O \ / F

a) [(3S,4R)-1-Benzyl-4-(4-fluoro-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester F
N

'N-O
O \ / F

In analogy to the procedure described for the synthesis of [(3S,4R)-1-Benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 265, a) the title compound was prepared from rac-[(3S,4R)-1-Benzyl-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-amine (W02008128891) and 4-fluorophenyl chloroformate. MS m/e: 423.3 [M+H]+.
This was followed by column chromatography on Chiralpak AD eluting with a gradient formed from ethanol and heptane. The product containing fractions were evaporated to yield the title compound as off-white solid. MS m/e: 423.3 [M+H]+.

b) [(3S,4R)-4-(4-Fluoro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester O _ / F
N

HN
" N -O
O \ / F

In analogy to the procedure described for the synthesis of rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester (example 1, e) the title compound was prepared from [(3S,4R)-1-Benzyl-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester through cleavage of the benzyl group. And, in analogy to the procedure described for the synthesis of rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester (example 1, f) the Boc-protected title compound was prepared from [(3S,4R)-4-(4-Fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and N-Boc-isonipecotic
-206-acid. The title compound was subsequently isolated after acidic cleavage of the Boc group with TFA. MS m/e: 444.3 [M+H] +.

c) [(3S,4R)-1-[1-(2-Cyano-acetyl)-piperidine-4-carbonyll-4-(4-fluoro-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(4-Fluoro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 2-cyanoacetic acid. MS m/e: 511.4 [M+H]+.

Example 285 [ (3S,4R)-1-(1-Acetyl-piperidine-4-carbonyl)-4-(4-fluoro-phenyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester 0 Chiral f-'- -~-a N F

IN-~Y
o O=< O \ / F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(4-Fluoro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and acetic acid. MS m/e: 486.4 [M+H]+.

Example 286 {(3S,4R)-4-(4-Fluoro-phenyl)-1-[1-(3-methyl-oxetane-3-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester 0 Chiral /
x /N
O\V/\?Ilf O O
O \ / F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-
-207-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(4-Fluoro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 3-methyloxetane-3-carboxylic acid. MS m/e: 542.3 [M+H]+.

Example 287 [(3S,4R)-1-[1-(3-Fluoro-cyclobutanecarbonyl)-piperidine-4-carbonyl]-4-(4-fluoro-phenyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (/^ Chiral F ^xL / ~F
Ir JY
N_-~(~~
N

O \ / F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(4-Fluoro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 3-fluorocyclobutanecarboxylic acid. MS m/e: 544.4 [M+H]+.

Example 288 [ (3S,4R)-1- [ 1-(1-Cyano-cyclopropanecarbonyl)-piperidine-4-carbonyl] -4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester 0 Chiral F
N
IIYO 0 - _ N
O \ / F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(4-Fluoro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 1-cyanocyclopropanecarboxylic acid. MS m/e: 537.3 [M+H]

Example 289 { (3S,4R)-4-(4-Fluoro-phenyl)-1- [ 1-(1-trifluoromethyl-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester
-208-0 Chiral rJ7 N~f~\
F N-F FO O=< O \ / F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(4-Fluoro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 1-(trifluoromethyl)cyclobutanecarboxylic acid. MS m/e: 594.3 [M+H]

Example 290 { (3S,4R)-4-(4-Fluoro-phenyl)-1- [ 1-(5-trifluoromethyl-pyridine-2-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester F 0 Chiral F N
\ om! F
N
N
N-O
O F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(4-Fluoro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 5-(trifluoromethyl)picolinic acid. MS m/e: 617.4 [M+H]+.
Example 291 { (3S,4R)-4-(4-Fluoro-phenyl)-1- [ 1-(6-oxo-piperidine-3-carbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester O
O N\-J \ F
HN N \
N-O O
O \ / F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(4-Fluoro-phenyl)-
-209-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 6-oxopiperidine-3-carboxylic acid. MS m/e: 569.3 [M+H]+.

Example 292 { (3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-((S)-4-oxo-azetidine-2-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester IOI Cl Chiral O
Ir JY N CI
N N
N-o O==~
O \ / F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and (S)-4-oxoazetidine-2-carboxylic acid. MS m/e: 591.3 [M+H]+.

Example 293 { (3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-fluoro-pyridin-3-yl ester 0 N ClChiral Cl CN~ -bN F

a) [(3S,4R)-1-Benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid tert-butyl ester Cl 1 ~ CI

O

A mixture of 5.96 g (17.8 mmol) (3S,4R)-1-benzyl-4-(3,4-dichlorophenyl)-N-methylpyrrolidin-3-amine (example 159, h), 4.27 g (19.6 mmol) di-tert.-butyloxy carbonyl and 21.7 mg (0.17 mmol) DMAP in THE was stirred at room temperature for 45 min and evaporated to dryness.
-210-The residue was subjected to column chromatography on silica eluting with a gradient formed from heptane and i-propanol to yield after evaporation of the product containing fractions 5.22 g (67 %) of the title compound as yellow oil. MS m/e: 435.1 [M+H]+.

b) [(3R,4S)-3-(3,4-Dichloro-phenyl)-4-methylamino-pvrrolidin-l-yll-[1-(1-methyl-cyclopropanecarbonyl)-pitperidin-4-yll -methanone N ~
CI
N-H

In analogy to the procedure described for the synthesis of rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester (example 1, e) the title compound was prepared from [(3S,4R)-1-Benzyl-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester through cleavage of the benzyl group. And, in analogy to the procedure described for the synthesis of rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester (example 1, f) the Boc-protected title compound was prepared from the intermediately built [(3S,4R)-4-(3,4-Dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester and 1-(1 -Methyl-cyclopropanecarbonyl) -piperidine-4-carboxylic acid. The title compound was subsequently isolated after acidic cleavage of the Boc group with TFA. MS m/e:
438.1 [M+H]+.
c) {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyll-pvrrolidin-3-yll-methyl-carbamic acid 2-fluoro-pyridin-3-yl ester A mixture of 50 mg (0.11 mmol) [(3 R,4S)-3-(3,4-Dichloro-phenyl)-4-methylamino-pyrrolidin-l-yl]-[1-(1-methyl-cyclopropanecarbonyl)-piperidin-4-yl]-methanone, 16.2 mg (0.12 mmol) DIPEA and 11.8 mg (0.04 mmol) triphosgene in 5 mL THE at -78 C was allowed to come to 0-5 C during 2 h, concentrated undervacuum and dissolved in 1 mL DMF. A
solution of 65.5 mg (0.57 mmol) 2-fluoropyridine-3-ol in 1 mL DMF was treated with 18.2 mg (0.45 mmol) NaH
55% in mineral oil and heated to 45 C for 1 h. This solution was added to the activated amine in DMF and the mixture was shaken for 90 minutes at 80 C. The mixture was filtered and the filtrate was subjected to preparative HPLC on reversed phase eluting with a gradient formed from acetonitrile, water and NEt3. The product containing fractions were evaporated to yield 42 mg (64 %) of the title compound as off-white foam. MS m/e: 577.3 [M+H]+.

Example 294 {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,6-dimethyl-pyridin-4-yl ester
-211-0 ClChiral N
CI
.N N

O p N

In analogy to the procedure described for the synthesis of {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl) -piperidine-4-carbonyl] -pyrrolidin-3 -yl}-methyl-carbamic acid 2-fluoro-pyridin-3-yl ester (example 293) the title compound was prepared from [(3R,4S)-3-(3,4-Dichloro-phenyl)-4-methylamino-pyrrolidin-1-yl]-[1-(1-methyl-cyclopropanecarbonyl)-piperidin-4-yl]-methanone, triphosgene and 2,6-dimethylpyridin-4-ol. MS m/e:
587.2 [M+H]
Example 295 { (3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid pyridin-3-yl ester O \ ClChiral CI

N-o p d N

In analogy to the procedure described for the synthesis of {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl) -piperidine-4-carbonyl] -pyrrolidin-3 -yl}-methyl-carbamic acid 2-fluoro-pyridin-3-yl ester (example 293) the title compound was prepared from [(3R,4S)-3-(3,4-Dichloro-phenyl) -4-methylamino-pyrrolidin-1-yl] - [ 1-(1-methyl-cyclopropanecarbonyl) -piperidin-4-yl]-methanone, triphosgene and pyridin-3-ol. MS m/e: 559.3 [M+H]+.
Example 296 { (3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-methyl-pyridin-3-yl ester O N ClChiral N
CI
CN~ =

O O
NO,
-212-In analogy to the procedure described for the synthesis of {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl) -piperidine-4-carbonyl] -pyrrolidin-3 -yl}-methyl-carbamic acid 2-fluoro-pyridin-3-yl ester (example 293) the title compound was prepared from [(3R,4S)-3-(3,4-Dichloro-phenyl) -4-methylamino-pyrrolidin-1-yl] - [ 1-(1-methyl-cyclopropanecarbonyl) -piperidin-4-yl]-methanone, triphosgene and 6-methylpyridin-3-ol. MS m/e: 573.2 [M+H]+.
Example 297 { (3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid pyridin-4-yl ester O ~ ClChiral N I
CI
N

O p In analogy to the procedure described for the synthesis of {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl) -piperidine-4-carbonyl] -pyrrolidin-3 -yl}-methyl-carbamic acid 2-fluoro-pyridin-3-yl ester (example 293) the title compound was prepared from [(3R,4S)-3-(3,4-Dichloro-phenyl) -4-methylamino-pyrrolidin-1-yl] - [ 1-(1-methyl-cyclopropanecarbonyl) -piperidin-4-yl]-methanone, triphosgene and pyridin-4-ol. MS m/e: 559.3 [M+H]

Example 298 { (3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,6-dimethyl-pyridin-3-yl ester 0 \ ciChiml N
CI
N -O O
N\ /

In analogy to the procedure described for the synthesis of {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-fluoro-pyridin-3-yl ester (example 293) the title compound was prepared from [(3R,4S)-3-(3,4-Dichloro-phenyl) -4-methylamino-pyrrolidin-1-yl] - [ 1-(1-methyl-cyclopropanecarbonyl) -piperidin-4-yl]-methanone, triphosgene and 2,6-dimethylpyridin-3-ol. MS m/e:
587.2 [M+H]+.
-213-Example 299 { (3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 5-fluoro-pyridin-3-yl ester O \ ClChiral N
CI
N N-o p F

In analogy to the procedure described for the synthesis of {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl) -piperidine-4-carbonyl] -pyrrolidin-3 -yl}-methyl-carbamic acid 2-fluoro-pyridin-3-yl ester (example 293) the title compound was prepared from [(3R,4S)-3-(3,4-Dichloro-phenyl) -4-methylamino-pyrrolidin-1-yl] - [ 1-(1-methyl-cyclopropanecarbonyl) -piperidin-4-yl]-methanone, triphosgene and 5-fluoropyridin-3-ol. MS m/e: 577.3 [M+H]+.

Example 300 { (3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-chloro-pyridin-2-yl ester 0 ClChiral CI
N N

N
CI

In analogy to the procedure described for the synthesis of {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidi -3-yl}-methyl-carbamic acid 2-fluoro-pyridin-3-yl ester (example 293) the title compound was prepared from [(3R,4S)-3-(3,4-Dichloro-phenyl) -4-methylamino-pyrrolidin-1-yl] - [ 1-(1-methyl-cyclopropanecarbonyl) -piperidin-4-yl]-methanone, triphosgene and 6-chloropyridin-2-ol. MS m/e: 595.2 [M+H]

Example 301 {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-chloro-5-fluoro-pyridin-3-yl ester
-214-Cl 0 \ ClChiral N I

N
O
O p F \ CI

~lj In analogy to the procedure described for the synthesis of {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl) -piperidine-4-carbonyl] -pyrrolidin-3 -yl}-methyl-carbamic acid 2-fluoro-pyridin-3-yl ester (example 293) the title compound was prepared from [(3R,4S)-3-(3,4-Dichloro-phenyl)-4-methylamino-pyrrolidin-1-yl]-[1-(1-methyl-cyclopropanecarbonyl)-piperidin-4-yl]-methanone, triphosgene and 2-chloro-5-fluoropyridin-3-ol. MS
m/e: 613.1 [M+H]+.

Example 302 { (3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-chloro-pyridin-3-yl ester O \ ClChiral N I ~
CI
N -O
O Cl O
N\

In analogy to the procedure described for the synthesis of {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl) -piperidine-4-carbonyl] -pyrrolidin-3 -yl}-methyl-carbamic acid 2-fluoro-pyridin-3-yl ester (example 293) the title compound was prepared from [(3R,4S)-3-(3,4-Dichloro-phenyl)-4-methylami o-pyrrolidi -1-yl]-[1-(1-methyl-cyclopropanecarbonyl)-piperidin-4-yl]-methanone, triphosgene and 2-chloropyridin-3-ol. MS m/e: 595.2 [M+H]
Example 303 { (3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-trifluoromethyl-pyridin-3-yl ester p N CICh I
N
CI
N \
O
O O
N
F
F F
-215-In analogy to the procedure described for the synthesis of {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl) -piperidine-4-carbonyl] -pyrrolidin-3 -yl}-methyl-carbamic acid 2-fluoro-pyridin-3-yl ester (example 293) the title compound was prepared from [(3R,4S)-3-(3,4-Dichloro-phenyl) -4-methylamino-pyrrolidin-1-yl] - [ 1-(1-methyl-cyclopropanecarbonyl) -piperidin-4-yl]-methanone, triphosgene and 6-(trifluoromethyl)pyridin-3-ol. MS
m/e: 627.2 [M+H]+.

Example 304 { (3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyano-pyridin-3-yl ester O \ ClChiral e I ~
CI
NN -~/J111( O
O p \ -N
N

In analogy to the procedure described for the synthesis of {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl) -piperidine-4-carbonyl] -pyrrolidin-3 -yl}-methyl-carbamic acid 2-fluoro-pyridin-3-yl ester (example 293) the title compound was prepared from [(3R,4S)-3-(3,4-Dichloro-phenyl) -4-methylamino-pyrrolidin-1-yl] - [ 1-(1-methyl-cyclopropanecarbonyl) -piperidi -4-yl]-methanone, triphosgene and 3-hydroxypicolinonitrile. MS m/e:
584.2 [M+H]+.
Example 305 { (3S,4R)-4-(3,4-Dichloro-phenyl)-1- [ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-fluoro-6-methyl-pyridin-3-yl ester O 1' ClChiral N
CI
N -111{ O
D N=~ O p \ F
N

In analogy to the procedure described for the synthesis of {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl) -piperidine-4-carbonyl] -pyrrolidin-3 -yl}-methyl-carbamic acid 2-fluoro-pyridin-3-yl ester (example 293) the title compound was prepared from [(3R,4S)-3-(3,4-Dichloro-phenyl) -4-methylamino-pyrrolidin-1-yl] - [ 1-(1-methyl-cyclopropanecarbonyl) -
-216-piperidin-4-yl]-methanone, triphosgene and 2-fluoro-6-methylpyridin-3-ol. MS
m/e: 591.3 [M+H]+.

Example 306 [ (3S,4R)-4-(3,4-Dichloro-phenyl)-1-(5'-trifluoromethyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester Cl Chiral u / Cl I(/J\I `N \
N
N-IN ~
F O

F

A mixture of 100 mg (0.2 mmol) [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 265, c), 68 mg (0.3 mmol) 2-bromo-5-(trifluoromethyl)pyridine and 131 mg (1 mmol) DIPEA in 8 mL
acetonitrile was heted to 80 C for 18 h. The mixture was evaporated and the residue subjected to column chromatography on silica eluting with a gradient formed from ethyl acetate and heptane to yield after evaporation of the product containing fractions 70 mg (54 %) of the title compounds as white faoam. MS m/e: 639.1 [M+H] +.

Example 307 [(3S,4R)-1-(5'-Acetyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester Cl Chiral LL ~ / CI
If/J\I/ N \
N
N-/N O=< O

O \ /
F

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(5'-trifluoromethyl-3,4,5,6-tetrahydro-2H- [ 1,2'1 bipyridinyl-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 306) the title compound was prepared from [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 265, c) and 1-(6-bromopyridin-3-yl)ethanone. MS m/e:
613.2 [M+H]+.
-217-Example 308 [ (3S,4R)-1-(5'-Chloro-3,4,5,6-tetrahydro-2H- [ 1,2'] bipyridinyl-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester CI CI Chiral CI /

N INI
N N
O O

F

In analogy to the procedure described for the synthesis of rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -methyl-carbamic acid tert-butyl ester (example 1, f) the title compound was prepared from [(3S,4R)-4-(4-Fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 1-(5-chloropyridin-2-yl)piperidine-4-carboxylic acid. MS m/e: 605.2 [M+H] +.

Example 309 [ (3S,4R)-4-(3,4-Dichloro-phenyl)-1-(5'-fluoro-3,4,5,6-tetrahydro-2H- [ 1,2']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester CI CI ChlraI
F

II
NYN, >/-O
N

F

In analogy to the procedure described for the synthesis of rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -methyl-carbamic acid tert-butyl ester (example 1, f) the title compound was prepared from [(3S,4R)-4-(4-Fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 5'-Fluoro-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carboxylic acid. MS m/e: 589.1 [M+H]+.

Example 310 [ (3S,4R)-1-(5'-Carbamoyl-3,4,5,6-tetrahydro-2H- [ 1,2'] bipyridinyl-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester
-218-CI Chiral Cl N
O
N N .... NI
N O
O O

F

In analogy to the procedure described for the synthesis of rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -methyl-carbamic acid tert-butyl ester (example 1, f) the title compound was prepared from [(3S,4R)-4-(4-Fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 5'-Carbamoyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carboxylic acid. MS m/e: 614.1 [M+H]+.

Example 311 [ (3S,4R)-4-(4-Chloro-3-fluoro-phenyl)-1-(5'-fluoro-3,4,5,6-tetrahydro-2H- [
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester 0 F Chiral N CI
N \ /
N_ F O~
O

F

a) (3S,4R)-1-Benzyl-4-(4-chloro-3-fluoro-phenyl)-pvrrolidine-3-carboxylic acid methyl ester Cl Chiral F O
N

In analogy to the procedure described for the synthesis of (3S,4R)-l-Benzyl-4-(4-chloro-phenyl)-pyrrolidine-3-carboxylic acid methyl ester (example 89, e) the title compounds was prepared following steps a) through to e). MS m/e: 348.2 [M+H]+.

b) (3S,4R)-1-Benzyl-4-(4-chloro-3-fluoro-phenyl)-pvrrolidine-3-carboxylic acid
-219-CI Chiral F O
H
N

A mixture of 19.5 g (56 mmol) (3S,4R)-1-Benzyl-4-(4-chloro-3-fluoro-phenyl)-pyrrolidine-3-carboxylic acid methyl ester and 14.1 g (337 mmol) LiOH-H20 in water (100 mL) and methanol (10 mL) was heated to 80 C for 45 min. The organic solvents were removed under vacuum and the aqueous phase acidified with 2N HCl tp pH=1-2. The precipitate was filtered off, washed with acetonitrile and dried to yield 15.1 g (73 %) of the title compound as off-white solid. MS m/e:
334.1 [M+H]+.

c) [(3S,4R)-1-Benzyl-4-(4-chloro-3-fluoro-phenyl)-pvrrolidin-3-yll-carbamic acid tert-butyl ester F Cl Chiral nN
N /~- O
x v A mixture of 15.1 g (41 mmol) (3S,4R)-1-Benzyl-4-(4-chloro-3-fluoro-phenyl)-pyrrolidine-3-carboxylic acid and 11.6 g (90 mmol) DIPEA in 100 mL t-butanol was heated to 55 C and 12.4 g (45 mmol) diphenylphosphoryl azide was added. The mixture was heated to 80 C
for 3 h and evaporated. The residue was subjected to column chromatography on silica eluting with a gradient formed from ethyl acetate and heptane to yield after evaporatioin of the product containing fractions 5.7 g (34 %) of the title compound as off-white solid. MS
m/e: 405.3 [M+H]+.
d) [(3S,4R)-1-Benzyl-4-(4-chloro-3-fluoro-phenyl)-pvrrolidin-3-yll-methyl-carbamic acid tert-butyl ester F Cl Chiral iN~
N /~- O
O <

A mixture of 5.7 g (14.1 mmol) [(3S,4R)-1-Benzyl-4-(4-chloro-3-fluoro-phenyl)-pyrrolidin-3-yl]-carbamic acid tert-butyl ester, 676 mg (17 mmol) NaH (55%) in DMF was stirred for 20
-220-minutes at room temperature and 1 h at 60 C. 3 g (21 mmol) iodomethane in DMF
was added and the the mixture was stirred at 60 C for lh and evaporated. The residue was taken up in ethyl acetate and water, the organic layer washed with brine and back-extracted with ethyl acetate. The combined organic layers were dried with Na2SO4, filtered off and evaporated.
The residue was taken up on isolute and subjected to column chromatography on silica eluting with a gradient formed from ethyl acetate and heptane to yield after evaporation of the product containing fractions 2.67 g (45 %) of the title compound as light yellow oil. MS m/e:
419.2 [M+H]+.

e) [(3S,4R)-4-(4-Chloro-3-fluoro-phenyl)-pvrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester F Cl Chiral N N/

N /~_ O
O / \

F

After acidic cleavage of the Boc-protecting group from [(3S,4R)-1-Benzyl-4-(4-chloro-3-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester the intermediately built carbamate was prepared in analogy to the procedure described for the synthesis of {(3S,4R)-4-(3,4-Dichloro-phenyl) -1- [ 1-(1-methyl-cyclopropanecarbonyl) -piperidine-4-carbonyl] -pvrrolidin-3-yl}-methyl-carbamic acid 2-fluoro-pyridin-3-yl ester (example 293, c) with 4-fluorophenol. In analogy to the procedure described for the synthesis of rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester (example 1, e) the title compound was prepared from the intermediately built [(3S,4R)-1-Benzyl-4-(4-chloro-3-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester through cleavage of the benzyl group. MS m/e: 367.0 [M+H] +.

f) [(3S,4R)-4-(4-Chloro-3-fluoro-phenyl)-1-(5'-fluoro-3,4,5,6-tetrahydro-2H-[1,2'lbipyridinyl-4-carbonyl)-pvrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester In analogy to the procedure described for the synthesis of rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -methyl-carbamic acid tert-butyl ester (example 1, f) the title compound was prepared from [(3S,4R)-4-(4-Chloro-3-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 1-(5-fluoropyridin-2-yl)piperidine-4-carboxylic acid. MS m/e: 573.1 [M+H] +.
-221-Example 312 [ (3S,4R)-4-(4-Chloro-3-fluoro-phenyl)-1-(5'-chloro-3,4,5,6-tetrahydro-2H- [
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester 0 F Chiral N b--CI
~ N

CI \ N O~NO

F

In analogy to the procedure described for the synthesis of rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -methyl-carbamic acid tert-butyl ester (example 1, f) the title compound was prepared from [(3S,4R)-4-(4-Chloro-3-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 1-(5-chloropyridin-2-yl)piperidine-4-carboxylic acid. MS m/e: 589.2 [M+H]+.
Example 313 [ (3S,4R)-4-(4-Chloro-3-fluoro-phenyl)-1-(5'-trifluoromethyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester o F Chiral N CI
r N\//
N-F N O~

In analogy to the procedure described for the synthesis of rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -methyl-carbamic acid tert-butyl ester (example 1, f) the title compound was prepared from [(3S,4R)-4-(4-Chloro-3-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 1-(5-(trifluoromethyl)pyridin-2-yl)piperidine-4-carboxylic acid. MS m/e: 623.2 [M+H]
Example 314 [(3S,4R)-1-(5'-Acetyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-4-(4-chloro-3-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester
-222-0 F Chiral O 0=-F

In analogy to the procedure described for the synthesis of rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -methyl-carbamic acid tert-butyl ester (example 1, f) the title compound was prepared from [(3S,4R)-4-(4-Chloro-3-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 1-(5-acetylpyridin-2-yl)piperidine-4-carboxylic acid. MS m/e: 597.2 [M+H]
Example 315 [ (3S,4R)-4-(3-Chloro-4-fluoro-phenyl)-1-(5'-fluoro-3,4,5,6-tetrahydro-2H- [
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester Cl F Chiral F`
IY`" ~ F
N N l /

O
O

a) [(3S,4R)-4-(3-Chloro-4-fluoro-phenyl)-pyrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester F F Chiral CI

O
N O

In analogy to the synthetic sequence described for [(3S,4R)-4-(4-Chloro-3-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 311, e) the title compound was prepared as an amorphous brown solid.

b) [(3S,4R)-4-(3-Chloro-4-fluoro-phenyl)-1-(5'-fluoro-3,4,5,6-tetrahydro-2H-[1,2'lbipyridinyl-4-carbonyl)-pvrrolidin-3-yll-methyl-carbamic acid 4-fluoro-phenyl ester In analogy to the procedure described for the synthesis of rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -methyl-carbamic acid tert-butyl ester (example 1, f) the title compound was prepared from [(3S,4R)-4-(3-Chloro-
-223-4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 1-(5-fluoropyridin-2-yl)piperidine-4-carboxylic acid. MS m/e: 573.2 [M+H]

Example 316 [ (3S,4R)-4-(3-Chloro-4-fluoro-phenyl)-1-(5'-chloro-3,4,5,6-tetrahydro-2H- [
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester CI F Chiral \~ F
N N
\
N "" N~O
O
O

In analogy to the procedure described for the synthesis of rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -methyl-carbamic acid tert-butyl ester (example 1, f) the title compound was prepared from [(3S,4R)-4-(3-Chloro-4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 1-(5-chloropyridin-2-yl)piperidine-4-carboxylic acid. MS m/e: 589.2 [M+H]+.
Example 317 [ (3S,4R)-4-(3-Chloro-4-fluoro-phenyl)-1-(5'-trifluoromethyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester Cl F Chiral F F

F F
N N l N
I`õ/I llOlT/
N

In analogy to the procedure described for the synthesis of rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -methyl-carbamic acid tert-butyl ester (example 1, f) the title compound was prepared from [(3S,4R)-4-(3-Chloro-4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 1-(5-(trifluoromethyl)pyridin-2-yl)piperidine-4-carboxylic acid. MS m/e: 623.3 [M+H]
Example 318 [ (3S,4R)-1-(5'-Acetyl-3,4,5,6-tetrahydro-2H- [ 1,2'] bipyridinyl-4-carbonyl)-4-(3-chloro-4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester
-224-CI F Chiral O I / \
F
N N O

O O O

In analogy to the procedure described for the synthesis of rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -methyl-carbamic acid tert-butyl ester (example 1, f) the title compound was prepared from [(3S,4R)-4-(3-Chloro-4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 1-(5-acetylpyridin-2-yl)piperidine-4-carboxylic acid. MS m/e: 597.3 [M+H]
Example 319 { (3S,4R)-4-(4-Chloro-phenyl)-1- [ 1-((S)-4-oxo-azetidine-2-carbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester 0 Chiral Cl HN ?-" F
O N N

O

In analogy to the procedure described for the synthesis of [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl] -methyl-carbamic acid 4-fluoro-phenyl ester (example 247) the title compound was prepared from 4-fluorophenyl (3S,4R)-4-(4-chlorophenyl)-1-(piperidine-4-carbonyl)pyrrolidin-3-yl(methyl)carbamate and (5)-4-oxoazetidine-2-carboxylic acid. MS m/e: 557.0 [M+H] +.
Example 320 [ (3S,4R)-4-(4-Chloro-phenyl)-1-(5'-hydroxy-3,4,5,6-tetrahydro-2H- [
1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester Cl Chiral O /

N INI /
N N
>/-O
O O / \

F

In analogy to the procedure described for the synthesis of rac- {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[ 1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl} -methyl-carbamic
-225-acid tert-butyl ester (example 1, f) the title compound was prepared from [(3S,4R)-4-(4-Chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester and 1-(5-hydroxypyridin-2-yl)piperidine-4-carboxylic acid. MS m/e: 553.2 [M+H]+.

Example 321 Acetic acid 4-{(3R,4S)-3-(4-chloro-phenyl)-4-[(4-fluoro-phenoxycarbonyl)-methyl-amino]-pyrrolidine- l -carbonyl}-3,4,5,6-tetrahydro-2H- [ 1,2'] bipyridinyl-5'-yl ester Cl Chiral --'r0-/
O /
N INI
N N//

O O 0, A mixture of [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-hydroxy-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (example 320, crude) was treated with acetyl chloride and the mixture was purified by preparative HPLC on reversed phase eluting with a gradient formed from acetonitrile, water and NEt3 to yield after evaporation of the product containing fractions the title compound as light yellow solid. MS m/e: 595.4 [M+H]+.

As mentioned earlier, the compounds of formula I and their pharmaceutically usable addition salts possess valuable pharmacological properties. It has been found that the compounds of the present invention are antagonists of neurokinin 3 (NK-3) receptors. The compounds were investigated in accordance with the tests given hereinafter.

Experimental procedure The compounds were investigated in accordance with the tests given hereinafter [3H] SR142801 competition binding assay hNK3 receptor binding experiment were performed using [3H]SR142801 (Catalog No. TRK1035, specific activity: 74.0 Ci/mmol, Amersham, GE Healthcare UK limited, Buckinghamshire, UK) and membrane isolated from HEK293 cells transiently expressing recombinant human NK3 receptor. After thawing, the membrane homogenates were centrifuged at 48,000 X
g for 10 min at 4 C, the pellets were resuspended in the 50 mM Tris-HC1, 4 mM MnC12, 1 M
-226-phosphoramidon, 0.1 % BSA binding buffer at pH 7.4 to a final assay concentration of 5 g protein/well. For inhibition experiments, membranes were incubated with [3H]SR142801 at a concentration equal to KD value of radio ligand and 10 concentrations of the inhibitory compound (0.0003 - 10 M) (in a total reaction volume of 500 l) for 75 min at room temperature (RT). At the end of the incubation, membranes were filtered onto unitfilter (96-well white microplate with bonded GF/C filter preincubated 1 h in 0.3 % PEI + 0.3 % BSA, Packard BioScience, Meriden, CT) with a Filtermate 196 harvester (Packard BioScience) and washed 4 times with ice-cold 50 mM Tris-HC1, pH 7.4 buffer. Nonspecific binding was measured in the presence of 10 M
SB222200 for both radioligands. The radioactivity on the filter was counted (5 min) on a Packard Top-count microplate scintillation counter with quenching correction after addition of 45 gl of microscint 40 (Canberra Packard S.A., Zurich, Switzerland) and shaking for 1 h.
Inhibition curves were fitted according to the Hill equation: y =
100/(1+(x/ICSO)"H), where nH = slope factor using Excel-fit 4 software (Microsoft). IC50 values were derived from the inhibition curve and the affinity constant (K;) values were calculated using the Cheng-Prussoff equation K; = ICSO/(1+[L]/KD) where [L] is the concentration of radioligand and KD is its dissociation constant at the receptor, derived from the saturation isotherm. All experiments were performed in duplicate and the mean standard error (SEM) of the individual K; values was calculated.

Some results of preferred compounds with a hNK-3 receptor affinity <0.10 gM
were shown in the following table 1.
Table 1 Example Data K; [pM] Example Data K; [pM]
2 0.0004 172 0.0041 4 0.0018 173 0.047 5 0.0562 175 0.036 6 0.0005 176 0.0046 7 0.0096 177 0.0189 8 0.004 179 0.0566 9 0.0136 180 0.0007 10 0.0015 181 0.0028 11 0.0271 182 0.002 12 0.0006 183 0.016
-227-13 0.002 184 0.0067 14 0.0012 185 0.003 15 0.0025 186 0.006 17 0.0007 187 0.0026 19 0.0002 188 0.0146 20 0.0724 189 0.0035 21 0.0104 190 0.0172 22 0.0169 191 0.0012 24 0.0335 192 0.0036 25 0.0054 193 0.0011 26 0.0029 194 0.0035 27 0.0307 195 0.0014 28 0.0034 196 0.0022 29 0.0149 197 0.0026 30 0.0103 198 0.0005 31 0.0116 199 0.0009 32 0.0014 200 0.0072 34 0.0028 201 0.0033 35 0.0811 202 0.0043 36 0.033 203 0.0003 37 0.0007 204 0.0412 38 0.042 205 0.0057 39 0.011 206 0.0906 40 0.0042 207 0.0006 42 0.0008 208 0.0004 43 0.0034 209 0.0008 44 0.0029 210 0.0046 45 0.0032 211 0.0024 47 0.0034 212 0.0014 48 0.0294 213 0.0072 49 0.0035 214 0.0942 51 0.0018 215 0.0084
-228-52 0.0081 216 0.0536 53 0.0047 217 0.0077 54 0.0264 218 0.0195 55 0.0861 219 0.0036 56 0.0613 220 0.0428 57 0.0076 221 0.001 60 0.0017 224 0.0228 62 0.0314 225 0.0112 64 0.0152 226 0.0792 65 0.0007 228 0.0008 66 0.0008 229 0.0168 67 0.0004 230 0.0027 68 0.0626 231 0.0057 69 0.0076 232 0.0218 70 0.0013 233 0.006 71 0.0018 234 0.0794 72 0.0212 236 0.0648 73 0.0008 237 0.0004 74 0.0008 238 0.048 75 0.0006 239 0.0616 76 0.0007 240 0.0228 77 0.0015 242 0.0027 78 0.0015 243 0.0472 79 0.0004 244 0.0209 80 0.0003 245 0.0011 81 0.067 246 0.0023 82 0.0014 247 0.0009 83 0.0042 248 0.0028 84 0.0183 249 0.0019 85 0.0092 250 0.0014 86 0.0604 251 0.0022 87 0.0092 252 0.0027
-229-88 0.0083 253 0.0018 89 0.0202 254 0.002 90 0.0079 255 0.0025 91 0.0044 256 0.0026 92 0.0023 257 0.0022 93 0.0066 258 0.0029 94 0.0002 259 0.0038 95 0.0058 260 0.0015 96 0.0537 261 0.0189 97 0.031 262 0.0039 98 0.048 263 0.0151 99 0.0016 264 0.0088 100 0.0122 265 0.0006 102 0.004 266 0.0005 103 0.0018 267 0.0007 104 0.0074 268 0.0006 105 0.0705 269 0.0005 106 0.001 270 0.0006 107 0.0586 271 0.0001 108 0.0007 272 0.0008 109 0.0002 273 0.0004 110 0.0003 274 0.0009 111 0.0044 275 0.0009 112 0.0037 276 0.001 113 0.0003 277 0.0005 114 0.083 278 0.0006 115 0.0013 279 0.002 116 0.01 280 0.0008 117 0.0174 281 0.0003 118 0.0003 282 0.002 120 0.0016 283 0.0007 121 0.0066 284 0.0311
-230-122 0.019 285 0.0191 123 0.0028 286 0.0254 124 0.0402 287 0.0072 125 0.0509 288 0.0266 126 0.0012 289 0.011 127 0.004 290 0.0998 128 0.068 291 0.1445 129 0.0137 292 0.00004 131 0.001 293 0.0758 132 0.0556 294 0.0112 133 0.003 295 0.0449 134 0.0036 296 0.0084 135 0.0403 297 0.0059 138 0.0371 298 0.038 139 0.0039 299 0.0228 140 0.0009 300 0.0026 141 0.0135 301 0.0215 143 0.0032 302 0.0187 144 0.0211 303 0.0026 145 0.0569 304 0.2108 146 0.0068 305 0.0055 147 0.0737 306 0.0007 149 0.0908 308 0.0002 150 0.0156 309 0.0005 151 0.0182 310 0.0006 152 0.0147 311 0.0009 153 0.0192 312 0.0004 156 0.0183 313 0.0009 157 0.0271 314 0.0006 158 0.0125 315 0.0017 159 0.0004 316 0.0009 160 0.0005 317 0.0016
-231-161 0.0074 318 0.0007 164 0.0814 319 0.0106 166 0.0364 320 0.0067 167 0.0049 321 0.0024 168 0.0984 169 0.0041 170 0.0083 171 0.0095 The compounds of formula I as well as their pharmaceutically usable acid addition salts can be used as medicaments, e.g. in the form of pharmaceutical preparations.
The pharmaceutical preparations can be administered orally, e.g. in the form of tablets, coated tablets, dragees, hard and soft gelatine capsules, solutions, emulsions or suspensions. The administration can, however, also be effected rectally, e.g. in the form of suppositories, or parenterally, e.g. in the form of injection solutions.
The compounds of formula I and their pharmaceutically usable acid addition salts can be processed with pharmaceutically inert, inorganic or organic excipients for the production of tablets, coated tablets, dragees and hard gelatine capsules. Lactose, corn starch or derivatives thereof, talc, stearic acid or its salts etc can be used as such excipients e.g. for tablets, dragees and hard gelatine capsules.
Suitable excipients for soft gelatine capsules are e.g. vegetable oils, waxes, fats, semi-solid and liquid polyols etc.
Suitable excipients for the manufacture of solutions and syrups are e.g.
water, polyols, saccharose, invert sugar, glucose etc.
Suitable excipients for injection solutions are e.g. water, alcohols, polyols, glycerol, vegetable oils etc.
Suitable excipients for suppositories are e.g. natural or hardened oils, waxes, fats, semi-liquid or liquid polyols etc.
Moreover, the pharmaceutical preparations can contain preservatives, solubilizers, stabilizers, wetting agents, emulsifiers, sweeteners, colorants, flavorants, salts for varying the osmotic pressure, buffers, masking agents or antioxidants. They can also contain still other therapeutically valuable substances.
-232-The dosage can vary within wide limits and will, of course, be fitted to the individual requirements in each particular case. In general, in the case of oral administration a daily dosage of about 10 to 1000 mg per person of a compound of general formula I should be appropriate, although the above upper limit can also be exceeded when necessary.

Example A
Tablets of the following composition are manufactured in the usual manner:
mg / tablet Active substance 5 Lactose 45 Corn starch 15 Micro crystalline cellulose 34 Magnesium stearate 1 Tablet weight 100 Example B
Capsules of the following composition are manufactured:
mg / capsule Active substance 10 Lactose 155 Corn starch 30 Talc 5 Capsule fill weight 200 The active substance, lactose and corn starch are firstly mixed in a mixer and then in a comminuting machine. The mixture is returned to the mixer, the talc is added thereto and mixed thoroughly. The mixture is filled by machine into hard gelantine capsules.
-233-Example C
Suppositories of the following composition are manufactured:
mg / supp.
Active substance 15 Suppository mass 1285 Total 1300 The suppository mass is melted in a glass or steel vessel, mixed thoroughly and cooled to 45 C. Thereupon, the finely powdered active substance is added thereto and stirred until it has dispersed completely. The mixture is poured into suppository moulds of suitable size, left to cool, the suppositories are then removed from the moulds and packed individually in wax paper or metal foil.

Claims (24)

1. A compound of formula I

wherein R1 is hydrogen, halogen, cyano, lower alkyl or lower alkyl substituted by halogen;
n is 1, 2 or 3, if n is 2 or 3, R1 can be different;

R2 is hydrogen or methyl;

R3 is (CH2),-C(O)NH2 or (CH2)r-CN, wherein r is 1 or 2, or is a non aromatic heterocyclic group wherein X is N or CH;

Y is -C(R)(R7)-; -N(R7')-, -S(O)2 or O;
R6 is hydrogen, di-lower alkyl or =O;

o and m may be independently from each other 0, 1 or 2;
p is 0, 1 or 2;

R is hydrogen, halogen, or lower alkyl;

R7 is hydrogen, halogen, hydroxy, lower alkyl substituted by hydroxy, cyano, or lower alkoxy;

R7' is hydrogen, -C(O)-lower alkyl, -C(O)O-lower alkyl, -C(O)CH2O-lower alkyl, -C(O)CH2CN, or is -C(O)-cycloalkyl, cycloalkyl or -CH2-cycloalkyl, wherein the cycloalkyl groups are optionally substituted by halogen, lower alkoxy, lower alkyl substituted by halogen, cyano, -CH2O-lower alkyl, or lower alkyl, or is -C(O)-heterocycloalkyl or heterocycloalkyl, or is -C(O)-heteroaryl or heteroaryl, which heterocycloalkyl or heteroaryl groups are optionally substituted by halogen, lower alkyl, =O, lower alkoxy, lower alkyl substituted by halogen, C(O)NH-lower alkyl, C(O)NH2, C(O)-lower alkyl, S(O)2- lower alkyl or cyano;

R4 is lower alkyl, lower alkyl substituted by halogen, lower alkyl substituted by hydroxy, lower alkyl substituted by cycloalkyl, (CH2)2,3-O-lower alkyl, CH(CH3)CH2-O-lower alkyl, (CH2)q CN, bicyclo[2.2.1]heptanyl, (CH2)q-cycloalkyl optionally substituted by lower alkyl, lower alkyl substituted by halogen, lower alkoxy or by halogen, or is (CH2)q-heterocycloalkyl or is (CH2)q-aryl, CH(lower alkyl)-aryl, CH(cycloalkyl)-aryl, or is (CH2)q-heteroaryl, which heterocycloalkyl, aryl or heteroaryl rings are optionally substituted by halogen, hydroxy, lower alkyl, lower alkyl substituted by halogen, S(O)2-lower alkyl, cyano or by lower alkoxy;
q is 0, 1 or 2;

or a pharmaceutically active salt thereof.
2. A compound of formula Ia encompassed by formula I in claim 1, wherein R1 is hydrogen, halogen, cyano, lower alkyl or lower alkyl substituted by halogen;
n is 1, 2 or 3, if n is 2 or 3, R1 can be different;

R2 is hydrogen or methyl;

R6 is hydrogen, di-lower alkyl or =O;

o and m may be independently from each other 0, 1 or 2;

R7' is hydrogen, -C(O)-lower alkyl, -C(O)O-lower alkyl, -C(O)CH2O-lower alkyl, -C(O)CH2CN, or is -C(O)-cycloalkyl, cycloalkyl or -CH2-cycloalkyl, wherein the cycloalkyl groups are optionally substituted by halogen, lower alkoxy, lower alkyl substituted by halogen, cyano, -CH2O-lower alkyl, or lower alkyl, or is -C(O)-heterocycloalkyl or heterocycloalkyl, or is -C(O)-heteroaryl or heteroaryl, which heterocycloalkyl or heteroaryl groups are optionally substituted by halogen, lower alkyl, =O, lower alkoxy, lower alkyl substituted by halogen, C(O)NH-lower alkyl, C(O)NH2, C(O)-lower alkyl, S(O)2- lower alkyl or cyano;

R4 is lower alkyl, lower alkyl substituted by halogen, lower alkyl substituted by hydroxy, lower alkyl substituted by cycloalkyl, (CH2)2,3-O-lower alkyl, CH(CH3)CH2-O-lower alkyl, (CH2)q CN, bicyclo[2.2.1]heptanyl, (CH2)q-cycloalkyl optionally substituted by lower alkyl, lower alkyl substituted by halogen, lower alkoxy or by halogen, or is (CH2)q-heterocycloalkyl or is (CH2)q-aryl, CH(lower alkyl)-aryl, CH(cycloalkyl)-aryl, or is (CH2)q-heteroaryl, which heterocycloalkyl, aryl or heteroaryl rings are optionally substituted by halogen, hydroxy, lower alkyl, lower alkyl substituted by halogen, S(O)2-lower alkyl, cyano or by lower alkoxy;
q is 0, 1 or 2;

or a pharmaceutically active salt thereof.
3. A compound formula Ia according to claim 2, wherein the compound is rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tert-butyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid cyclopentyl ester rac-[(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester rac-[(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid phenyl ester rac-[(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid p-tolyl ester rac-[(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methoxy-phenyl ester rac-[(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-chloro-phenyl ester rac-[(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid butyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-chloro-phenyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid phenyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid p-tolyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid p-methoxyphenyl ester {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid p-tolyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid p-tolyl ester {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-chlorophenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-chlorophenyl ester [(3R,4S)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methoxy-phenyl ester [(3S,4R)-1-(1-Cyclopropylmethyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methoxy-phenyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,2-dimethyl-propyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid prop-2-ynyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid cyclopropylmethyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-arbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester rac-{(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester rac-{(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid butyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-chloro-pyridin-3-yl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3,3-trifluoro-propyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3-dimethyl-butyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tetrahydro-pyran-4-ylmethyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid cyclopentylmethyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3-methyl-oxetan-3-ylmethyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-trifluoromethyl-pyridin-3-yl ester {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-arbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-arbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester {(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester rac-{(3R,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-chloro-pyridin-3-yl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-chloro-pyridin-3-yl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-carbamic acid 4-fluoro-phenyl ester rac-{(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester rac-{(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-methyl-cyclohexyl ester {(3R,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester rac-{(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester rac-{(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyclopropyl-ethyl ester rac-[(3R,4S)-1-(1-Acetyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester rac-4-{(3S,4R)-3-(3,4-Dichloro-phenyl)-4-[(4-fluoro-phenoxycarbonyl)-methyl-amino]-pyrrolidine-1-carbonyl}-piperidine-1-carboxylic acid tert-butyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (1R,2S,4S)-bicyclo[2.2.1]hept-2-yl ester and {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (1R,2S,4S)-bicyclo[2.2.1]hept-2-yl ester {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (1R,2R,4S)-bicyclo[2.2.1]hept-2-yl ester and {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (1R,2R,4S)-bicyclo[2.2.1]hept-2-yl ester rac-{(3R,4S)-4-(3-Chloro-4-methyl-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester rac-{(3R,4S)-4-(4-Chloro-3-methyl-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(1-propionyl-piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester rac-[(3R,4S)-1-(1-Cyclopropanecarbonyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(2-methoxy-acetyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(tetrahydro-pyran-4-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(tetrahydro-pyran-4-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(1-[1,3,4]thiadiazol-2-yl-piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester rac-[(3R,4S)-1-[1-(6-Chloro-pyridazin-3-yl)-piperidine-4-carbonyl]-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester rac-[(3R,4S)-1-(5'-Cyano-3,4,5,6-tetrahydro-2H-[1,2'] bipyridinyl-4-carbonyl)-
4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3,4,4,4-pentafluoro-butyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (S)-1-(tetrahydro-furan-2-yl)methyl ester and rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (R)-1-(tetrahydro-furan-2-yl)methyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (S)-1-(tetrahydro-furan-3-yl)methyl ester and rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid (R)-1-(tetrahydro-furan-3-yl)methyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3,3-trifluoro-propyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3,3-trifluoro-propyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,5,5,5-pentafluoro-pentyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 1-methyl-cyclopropylmethyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-methyl-cyclopropylmethyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-benzyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3-hydroxy-3-methyl-butyl ester rac{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4-difluoro-cyclohexylmethyl ester {(3R,4S)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4,4-trifluoro-butyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4,4-difluoro-cyclohexyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 1-methyl-cyclopropylmethyl ester {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 1-methyl-cyclopropylmethyl ester {(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1,1-dioxo-hexahydro-1.lambda.6-thiopyran-4-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(6-chloro-pyridazin-3-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester rac-{(3R,4S)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3-difluoro-cyclopentylmethyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(tetrahydro-pyran-4-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3-bromo-4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1,1-dioxo-tetrahydro-1.lambda.6-thiophen-3-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(6-methyl-pyridazin-3-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid tert-butyl ester rac-[(3S,4R)-1-(5'-tert-Butylcarbamoyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester rac-[(3S,4R)-1-(5'-tert-Butylcarbamoyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester [(3R,4S)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(tetrahydro-pyran-4-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester rac-[(3S,4R)-1-(5'-tert-Butylcarbamoyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4,4,4-trifluoro-butyl ester [(3R,4S)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4,4,4-trifluoro-butyl ester [(3R,4S)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4,4,4-trifluoro-butyl ester {(3S,4R)-4-(4-Fluoro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3R,4S)-4-(4-Fluoro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1-(5'-Cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3R,4S)-1-(5'-Cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester 4-{(3R,4S)-3-(4-Chloro-phenyl)-4-[(4-fluoro-phenoxycarbonyl)-methyl-amino]-pyrrolidine-1-carbonyl}-piperidine-1-carboxylic acid tert-butyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(5-methyl-[1,3,4]oxadiazol-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid ethyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid isopropyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid propyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid isobutyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(6-cyano-pyridazin-3-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid isobutyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid propyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid cyclohexyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3,3,3-trifluoro-propyl ester [(3R,4S)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3,3,3-trifluoro-propyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclopropyl-piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester 3-{(3R,4S)-3-(4-Chloro-phenyl)-4-[(4-fluoro-phenoxycarbonyl)-methyl-amino]-pyrrolidine-1-carbonyl}-pyrrolidine-1-carboxylic acid tert-butyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid cyclohexyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1-cyclopropyl-ethyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 1-cyclopropyl-ethyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid oxetan-3-yl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid tetrahydro-pyran-4-yl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid sec-butyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,2,2-trifluoro-ethyl ester [(3S,4R)-1-(5'-Cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(6-methyl-pyridazin-3-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid tetrahydro-pyran-4-yl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid sec-butyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,2,2-trifluoro ethyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,2,2-trifluoro-1-methyl-ethyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,2,2-trifluoro-1-methyl-ethyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(4-methyl-pyrimidin-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(pyrrolidine-3-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(5-fluoro-pyrimidin-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-propionyl-pyrrolidine-3-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclopropanecarbonyl-pyrrolidine-3-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(2-methoxy-acetyl)-pyrrolidine-3-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid cyclobutyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid cyclobutyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,2,3,3-tetrafluorocyclobutyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,2,3,3-tetrafluorocyclobutyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3,3,3-trifluoro-1-methyl-propyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 3,3,3-trifluoro-1-methyl-propyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(tetrahydro-pyran-4-yl)-pyrrolidine-3-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-methanesulfonyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-trifluoromethyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1-(5'-Acetyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-pyrimidin-2-yl-piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(5-chloro-pyrimidin-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(4'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(3'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(6-cyano-pyrazin-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(3'-chloro-5'-trifluoromethyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(6'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(5-methoxy-pyrimidin-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-pyrimidin-4-yl-piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(5-cyano-pyrimidin-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(5-cyano-pyrazin-2-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-methyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-fluoro-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1-(5'-Carbamoyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(6-methoxy-pyridazin-3-yl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(6'-cyano-3,4,5,6-tetrahydro-2H-[1,3']
bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-chloro-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methoxy-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid p-tolyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-chloro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid cyclopentyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,2-dimethyl-propyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-methoxy-ethyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,4-difluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3,4-difluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(6'-cyano-3,4,5,6-tetrahydro-2H-[1,3']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3,5-difluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,3-difluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-chloro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3-fluoro-propyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid cyclopropylmethyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3-methoxy-propyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1-methyl-cyclopropylmethyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3-methyl-oxetan-3-ylmethyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-cyclopropyl-ethyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methyl-cyclohexyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methyl-cyclohexyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-methoxy-1-methyl-ethyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-fluoro-ethyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methanesulfonyl-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 3-cyano-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1-(4-fluoro-phenyl)-ethyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2-fluoro-1-fluoromethyl-ethyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-cyano-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid o-tolyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid m-tolyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid tetrahydro-pyran-4-ylmethyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid tetrahydro-furan-2-ylmethyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid tetrahydro-furan-3-ylmethyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1,1-dimethyl-propyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 2,2,2-trifluoro-1,1-dimethyl-ethyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1-(4-fluoro-phenyl)-propyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-cyano-2-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methoxy-cyclohexyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid cyclopropyl-(4-fluoro-phenyl)-methyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-methyl-1-trifluoromethyl-cyclohexyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1,4-dimethyl-cyclohexyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1,4-dimethyl-cyclohexyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 1-methyl-cyclopentyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 5-chloro-pyridin-2-yl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-cyano-3-fluoro-phenyl ester [(3S,4R)-1-(1-Acetyl-piperidine-4-carbonyl)-4-(4-chloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(1-cyclobutanecarbonyl-piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(3-methyl-oxetane-3-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(3-fluoro-cyclobutanecarbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(3,3-difluoro-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(3-methoxy-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-trifluoromethyl-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(2-cyano-acetyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-cyano-cyclopropanecarbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-trifluoromethyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(2,2-difluoro-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(tetrahydro-pyran-4-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(2,2-dimethyl-tetrahydro-pyran-4-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-methoxymethyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(2,2-dimethyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(5-trifluoromethyl-pyridine-2-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(5-fluoro-pyridine-2-carbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(6-oxo-piperidine-3-carbonyl)-piperidine-4-carbonyl] -pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-(1-isopropyl-6-oxo-piperidine-3-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1-(1-Cyclobutanecarbonyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(3-methyl-oxetane-3-carbonyl)-piperidine-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(3-fluoro-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(3,3-difluoro-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(3-methoxy-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-trifluoromethyl-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1-[1-(2-Cyano-acetyl)-piperidine-4-carbonyl]-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1-[1-(1-Cyano-cyclopropanecarbonyl)-piperidine-4-carbonyl]-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-trifluoromethyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(2,2-difluoro-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(tetrahydro-pyran-4-carbonyl)-piperidine-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(2,2-dimethyl-tetrahydro-pyran-4-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methoxymethyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(2,2-dimethyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(5-trifluoromethyl-pyridine-2-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(5-fluoro-pyridine-2-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(6-oxo-piperidine-3-carbonyl)-piperidine-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-isopropyl-6-oxo-piperidine-3-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1-(1-Acetyl-piperidine-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1-[1-(2-Cyano-acetyl)-piperidine-4-carbonyl]-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1-(1-Acetyl-piperidine-4-carbonyl)-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Fluoro-phenyl)-1-[1-(3-methyl-oxetane-3-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1-[1-(3-Fluoro-cyclobutanecarbonyl)-piperidine-4-carbonyl]-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1-[1-(1-Cyano-cyclopropanecarbonyl)-piperidine-4-carbonyl]-4-(4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Fluoro-phenyl)-1-[1-(1-trifluoromethyl-cyclobutanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Fluoro-phenyl)-1-[1-( 5-trifluoromethyl-pyridine-2-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Fluoro-phenyl)-1-[1-(6-oxo-piperidine-3-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-((S)-4-oxo-azetidine-2-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-fluoro-pyridin-3-yl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,6-dimethyl-pyridin-4-yl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid pyridin-3-yl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-methyl-pyridin-3-yl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid pyridin-4-yl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2,6-dimethyl-pyridin-3-yl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 5-fluoro-pyridin-3-yl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-chloro-pyridin-2-yl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-chloro-5-fluoro-pyridin-3-yl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-chloro-pyridin-3-yl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 6-trifluoromethyl-pyridin-3-yl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-cyano-pyridin-3-yl ester {(3S,4R)-4-(3,4-Dichloro-phenyl)-1-[1-(1-methyl-cyclopropanecarbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 2-fluoro-6-methyl-pyridin-3-yl ester [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(5'-trifluoromethyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1-(5'-Acetyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1-(5'-Chloro-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(5'-fluoro-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1-(5'-Carbamoyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-3-fluoro-phenyl)-1-(5'-fluoro-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-3-fluoro-phenyl)-1-(5'-chloro-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-3-fluoro-phenyl)-1-(5'-trifluoromethyl-3,4,5,6-tetrahydro-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1-(5'-Acetyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-4-(4-chloro-3-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(3-Chloro-4-fluoro-phenyl)-1-(5'-fluoro-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(3-Chloro-4-fluoro-phenyl)-1-(5'-chloro-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(3-Chloro-4-fluoro-phenyl)-1-(5'-trifluoromethyl-3,4,5,6-tetrahydro-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-1-(5'-Acetyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-4-(3-chloro-4-fluoro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester {(3S,4R)-4-(4-Chloro-phenyl)-1-[1-((S)-4-oxo-azetidine-2-carbonyl)-piperidine-4-carbonyl]-pyrrolidin-3-yl}-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(5'-hydroxy-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester or Acetic acid 4-{(3R,4S)-3-(4-chloro-phenyl)-4-[(4-fluoro-phenoxycarbonyl)-methyl-amino]-pyrrolidine-1-carbonyl}-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-5'-yl ester.

4. A compound of formula Ib encompassed by formula I in claim 1, wherein R1 is hydrogen, halogen, cyano, lower alkyl or lower alkyl substituted by halogen;
n is 1, 2 or 3, if n is 2 or 3, R1 can be different;

R2 is hydrogen or methyl;

R6 is hydrogen, di-lower alkyl or =O;

o and m may be independently from each other 0,1 or 2;

R is hydrogen, halogen, or lower alkyl;

R7 is hydrogen, halogen, hydroxy, lower alkyl substituted by hydroxy, cyano, or lower alkoxy;

R4 is lower alkyl, lower alkyl substituted by halogen, lower alkyl substituted by hydroxy, lower alkyl substituted by cycloalkyl, (CH2)2,3-O-lower alkyl, CH(CH3)CH2-O-lower alkyl, (CH2)q CN, bicyclo[2.2.1]heptanyl, (CH2)q-cycloalkyl optionally substituted by lower alkyl, lower alkyl substituted by halogen, lower alkoxy or by halogen, or is (CH2)q-heterocycloalkyl or is (CH2)q-aryl, CH(lower alkyl)-aryl, CH(cycloalkyl)-aryl, or is (CH2)q-heteroaryl, which heterocycloalkyl, aryl or heteroaryl rings are optionally substituted by halogen, hydroxy, lower alkyl, lower alkyl substituted by halogen, S(O)2-lower alkyl, cyano or by lower alkoxy;
q is 0, 1 or 2;

or a pharmaceutically active salt thereof.
5. A compound of formula Ib according to claim 4, which compound is [(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(trans-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(trans-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(cis-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(cis-4-methoxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(trans-4-hydroxy-4-methyl-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(cis-4-hydroxy-4-methyl-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(cis-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(cis-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(4-cyano-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(4-hydroxymethyl-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(4,4-difluoro-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(3-methoxy-cyclobutanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester.
6. A compound of formula Ic encompassed by formula I in claim 1, wherein R1 is hydrogen, halogen, cyano, lower alkyl or lower alkyl substituted by halogen;
n is 1, 2 or 3, if n is 2 or 3, R1 can be different;

R2 is hydrogen or methyl;
p is 0, l or 2;

R4 is lower alkyl, lower alkyl substituted by halogen, lower alkyl substituted by hydroxy, lower alkyl substituted by cycloalkyl, (CH2)2,3-O-lower alkyl, CH(CH3)CH2-O-lower alkyl, (CH2)q CN, bicyclo[2.2.1]heptanyl, (CH2)q-cycloalkyl optionally substituted by lower alkyl, lower alkyl substituted by halogen, lower alkoxy or by halogen, or is (CH2)q-heterocycloalkyl or is (CH2)q-aryl, CH(lower alkyl)-aryl, CH(cycloalkyl)-aryl, or is (CH2)q-heteroaryl, which heterocycloalkyl, aryl or heteroaryl rings are optionally substituted by halogen, hydroxy, lower alkyl, lower alkyl substituted by halogen, S(O)2-lower alkyl, cyano or by lower alkoxy;
q is 0, 1 or 2;

or a pharmaceutically active salt thereof.
7. A compound of formula Ic according to claim 6, which compound is rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(morpholine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(3-morpholin-4-yl-propionyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester
8. A compound of formula Id encompassed by formula I in claim 1, wherein R1 is hydrogen, halogen, cyano, lower alkyl or lower alkyl substituted by halogen;
n is 1, 2 or 3, if n is 2 or 3, R1 can be different;

R2 is hydrogen or methyl;

R6 is hydrogen, di-lower alkyl or =O;

o and m may be independently from each other 0, 1 or 2;

R4 is lower alkyl, lower alkyl substituted by halogen, lower alkyl substituted by hydroxy, lower alkyl substituted by cycloalkyl, (CH2)2,3-O-lower alkyl, CH(CH3)CH2-O-lower alkyl, (CH2)q CN, bicyclo[2.2.1]heptanyl, (CH2)q-cycloalkyl optionally substituted by lower alkyl, lower alkyl substituted by halogen, lower alkoxy or by halogen, or is (CH2)q-heterocycloalkyl or is (CH2)q-aryl, CH(lower alkyl)-aryl, CH(cycloalkyl)-aryl, or is (CH2)q-heteroaryl, which heterocycloalkyl, aryl or heteroaryl rings are optionally substituted by halogen, hydroxy, lower alkyl, lower alkyl substituted by halogen, S(O)2-lower alkyl, cyano or by lower alkoxy;
q is 0, 1 or 2;

or a pharmaceutically active salt thereof.
9. A compound of formula Id according to claim 8, which compound is rac-[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(2,2-dimethyl-tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(tetrahydro-pyran-3-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(4-Chloro-phenyl)-1-(tetrahydro-furan-3-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester [(3S,4R)-4-(3,4-Dichloro-phenyl)-1-(tetrahydro-pyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-trifluoromethyl-cyclohexyl ester
10. A compound of formula Ie encompassed by formula I in claim 1, wherein R1 is hydrogen, halogen, cyano, lower alkyl or lower alkyl substituted by halogen;
n is 1, 2 or 3, if n is 2 or 3, R1 can be different;

R2 is hydrogen or methyl;

R4 is lower alkyl, lower alkyl substituted by halogen, lower alkyl substituted by hydroxy, lower alkyl substituted by cycloalkyl, (CH2)2,3-O-lower alkyl, CH(CH3)CH2-O-lower alkyl, (CH2)q CN, bicyclo[2.2.1]heptanyl, (CH2)q-cycloalkyl optionally substituted by lower alkyl, lower alkyl substituted by halogen, lower alkoxy or by halogen, or is (CH2)q-heterocycloalkyl or is (CH2)q-aryl, CH(lower alkyl)-aryl, CH(cycloalkyl)-aryl, or is (CH2)q-heteroaryl, which heterocycloalkyl, aryl or heteroaryl rings are optionally substituted by halogen, hydroxy, lower alkyl, lower alkyl substituted by halogen, S(O)2-lower alkyl, cyano or by lower alkoxy;
q is 0, 1 or 2;

or a pharmaceutically active salt thereof.
11. A compound of formula Ie according to claim 10, which compound is rac-[(3R,4S)-1-(3-Carbamoyl-propionyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester
12. A compound of formula If encompassed by formula I in claim 1, wherein R1 is hydrogen, halogen, cyano, lower alkyl or lower alkyl substituted by halogen;
n is 1, 2 or 3, if n is 2 or 3, R1 can be different;

R2 is hydrogen or methyl;

R6 is hydrogen, di-lower alkyl or =O;

o and m may be independently from each other 0, 1 or 2;

R4 is lower alkyl, lower alkyl substituted by halogen, lower alkyl substituted by hydroxy, lower alkyl substituted by cycloalkyl, (CH2)2,3-O-lower alkyl, CH(CH3)CH2-O-lower alkyl, (CH2)q CN, bicyclo [2.2.1]heptanyl, (CH2)q-cycloalkyl optionally substituted by lower alkyl, lower alkyl substituted by halogen, lower alkoxy or by halogen, or is (CH2)q-heterocycloalkyl or is (CH2)q-aryl, CH(lower alkyl)-aryl, CH(cycloalkyl)-aryl, or is (CH2)q-heteroaryl, which heterocycloalkyl, aryl or heteroaryl rings are optionally substituted by halogen, hydroxy, lower alkyl, lower alkyl substituted by halogen, S(O)2-lower alkyl, cyano or by lower alkoxy;
q is 0, 1 or 2;

or a pharmaceutically active salt thereof.
13. a compound according to claim 12, which compound is [(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(cis-4-hydroxy-cyclohexanecarbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester
14. A compound of formula Ig encompassed by formula I in claim 1, wherein R1 is hydrogen, halogen, cyano, lower alkyl or lower alkyl substituted by halogen;
n is 1, 2 or 3, if n is 2 or 3, R1 can be different;

R2 is hydrogen or methyl;

R6 is hydrogen, di-lower alkyl or =O;

o and m may be independently from each other 0, 1 or 2;

R4 is lower alkyl, lower alkyl substituted by halogen, lower alkyl substituted by hydroxy, lower alkyl substituted by cycloalkyl, (CH2)2,3-O-lower alkyl, CH(CH3)CH2-O-lower alkyl, (CH2)q CN, bicyclo[2.2.1]heptanyl, (CH2)q-cycloalkyl optionally substituted by lower alkyl, lower alkyl substituted by halogen, lower alkoxy or by halogen, or is (CH2)q-heterocycloalkyl or is (CH2)q-aryl, CH(lower alkyl)-aryl, CH(cycloalkyl)-aryl, or is (CH2)q-heteroaryl, which heterocycloalkyl, aryl or heteroaryl rings are optionally substituted by halogen, hydroxy, lower alkyl, lower alkyl substituted by halogen, S(O)2-lower alkyl, cyano or by lower alkoxy;
q is 0, 1 or 2;

or a pharmaceutically active salt thereof.
15. A compound of formula Ig according to claim 14, which compound is [(3S,4R)-4-(4-Chloro-phenyl)-1-(1,1-dioxo-hexahydro-1 .lambda.6-thiopyran-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester
16. A process for preparation of a compound of formula I as defined in claim 1, which process comprises a) coupling a compound of formula II

with a suitable carbamoyl chloride, acid chloride or carboxylic acid to afford a compound of formula I

wherein the substituents R1, R2, R3, R4 and n are as defined in claim 1, and if desired, converting the compounds obtained into pharmaceutically acceptable acid addition salts;
or b) coupling a compound with formula III

with a corresponding chloroformate, acid anhydride or a mixture of triphosgene and corresponding alcohol to afford a compound of formula I

wherein the substituents R1, R2, R3, R4 and n are as defined in claim 1, and if desired, converting the compounds obtained into pharmaceutically acceptable acid addition salts.
17. A compound according to any on of claims 1 - 15, whenever prepared by a process as claimed in claim 16.
18. A compound according to any one of claims 1 - 15 for use as therapeutically active substance.
19. A medicament containing one or more compounds as claimed in any one of claims 1 - 15 and pharmaceutically acceptable excipients.
20. A medicament according to claim 19 for the treatment of depression, pain, psychosis, Parkinson's disease, schizophrenia, anxiety and attention deficit hyperactivity disorder (ADHD).
21. The use of a compound according to any one of claims 1 - 15 for the treatment of depression, pain, psychosis, Parkinson's disease, schizophrenia, anxiety and attention deficit hyperactivity disorder (ADHD).
22. The use of a compound as claimed in any one of claims 1 - 15 for the manufacture of medicaments for the treatment of depression, pain, psychosis, Parkinson's disease, schizophrenia, anxiety and attention deficit hyperactivity disorder (ADHD).
23. A method for the treatment of depression, pain, psychosis, Parkinson's disease, schizophrenia, anxiety and attention deficit hyperactivity disorder (ADHD), which method comprises aministering an effective amount of a compound as defined in any one of claims 1 - 15.
24. The invention as herein before described.
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